【单选题】
C701主要作用是去除原料中的___。
A. CO
B. H2O
C. COS
D. O2
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答案
A
解析
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C703再生使用的介质是___。
A. 热氮气
B. 丙烯气
C. 氢气
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C701系统的FV70002排往界区___系统。
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C702A/B中装填的催化剂的名称___。
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700#初始开车置换用的丙烯___。
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C701压力升高,PC70003MV应做___调整。
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聚丙烯熔点为___。
A. 100~120℃
B. 120~140℃
C. 164~170℃
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R201聚合反应器的高度是___。
A. 50m
B. 24m
C. 30m
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引丙烯时,管线或设备应最好升压至___。
A. 6kg/cm2
B. 5kg/cm2
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C301塔板数为___。
A. 11
B. 8
C. 23
D. 15
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对聚丙烯树脂而言,熔融指数升高则___。
A. 相对分子质量增加,流动性提高
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无规共聚物与均聚物相比冲击强度和___能有所提高。
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过氧化物的加料位置在___。
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通常MFR越高,造粒单元___。
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气蚀的主要原因是___。
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在装置生产中,环管反应器压力控制在___。
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环管夹套水泵在启动前要确认___。
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丙烯汽化器引丙烯时要___。
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在聚丙烯装置中一氧化碳是用来___。
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注入R201的CO浓度是___。
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造粒助剂下料波动的处理办法有___。
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添加剂下料不好的处理办法有___。
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某现场压力表指示数为0.5MPa,此仪表指示数值为___。
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推荐试题
【多选题】
Which two are considered basic security principles?___
A. Accountability
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【多选题】
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【单选题】
Which next-generation encryption algorithm supports four variants?___
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【单选题】
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【单选题】
There are two versions of IKE:IKEv1 and IKEv2. Both IKEv1 and IKEv2 protocols operate in phases IKEv1 operates in two phases. IKEv2 operates in how many phases?___
A. 2
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【单选题】
What does the dh group refer to?___
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【单选题】
Which path do you follow to enable aaa through the SDM ?___
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【单选题】
which technology cloud be used on top of an MPLS VPN to add confidentiality ?___
A. IPsec
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【单选题】
Which term is most closely aligned with the basic purpose of a SIEM solution? ___
A. Non-Repudiation
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【单选题】
You have just deployed SNMPv3 in your environment, Your manager asks you to make sure that our SNMP agents can only talk to the SNMP Manager. What would you configure on your SNMI agents to satisfy this request?___
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C. A standard ACL containing the SNMP managers applied to the SNMP configuration
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【单选题】
Which feature prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port?___
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【单选题】
Which command enables port security to use sticky MAC addresses on a switch?___
A. switchport port-security violation restrict
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【单选题】
When you edit an IPS subsignature, what is the effect on the parent signature and the family of subsignatures?___
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Which type of mechanism does Cisco FirePOWER de ploy to protect ag detected moving across other networks?___
A. antivirus scanning
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【单选题】
What action must you take on the ise to blacklist a wired device?___
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B. Issue a CoA request for the de vice's mac address to each access switch in the network
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【单选题】
Which type of firewall can perform deep packet inspection?___
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【单选题】
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【单选题】
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【单选题】
What is the best definition of hairpinning?___
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Which SNMPv3 security level provides authentication using HMAC with MD5, but does not use encryption?___
A. authPriv
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You have implemented a dynamic blacklist, using security intelligence to block illicit network activity. However, the blacklist contains several approved connections that users must access for usiness pur poses. Which action can you take to retain the blacklist while allowing users to access the approve d sites?___
A. Create a whitelist and manually add the approved addresses.
B. Disable the dynamic blacklist and deny the specif ic address on a whitelist while permitting the others
C. Edit the dynamic blacklist to remove the approved addresses
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【单选题】
When connecting to an external resource,you must change a source IP address to use one IP address from a range of 207.165.201.1 to 207.165.1.30. Which option do you implement ?___
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Refer to the exhibit. 【nat(ins,any)dynamic interface】Which ty pe of NaT is configured on a Cisco ASA?___
A. dynamic NAT
B. source identity NAT
C. dynamic PAT
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【单选题】
Which mitigation technology for web-based threats prevents the removal of confidential data from the network?___
A. CTA
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【单选题】
Refer to the exhibit. What is the effect of the given configuration?___
A. It establishes the preshared key for the switch
B. It establishes the preshared key for the firewall.
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【多选题】
What are two major considerations when choosing between a SPAN and a TAP when plementing IPS?___
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【多选题】
What are two direct-to-tower methods for redirecting web traffic to Cisco Cloud Web Security?___
A. third-party proxies
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【多选题】
Which three descriptions of RADIUS are true? ___
A. It uses TCP as its transport protocol.
B. Only the password is encrypted
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【多选题】
Which two configurations can prevent VLAN hopping attack from attackers at VLAN 10?___
A. using switchport trunk native vlan 10 command on trunk ports
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E. using switchport mode access command on all host ports
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【多选题】
What are two features of transparent firewall mode ___
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【多选题】
Which two models of A sa tend to be used in a data center?___
A. 5555X
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【多选题】
Which two statements about hardware-based encrption are true?___
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【多选题】
In which two modes can the Cisco We b Security appliance be de ployed?___
A. as a transparent proxy using the Secure Sockets Layer protocol
B. as a transparent proxy using the Web Cache Communication Protocol
C. explicit proxy mode
D. as a transparent proxy using the Hyper Text Transfer Protocol
E. explicit active mode
【单选题】
1.三相刀开关的图形符号与交流接触器的主触点符号是___。
A. 一样的
B. 可以互换
C. 有区别的
D. 没有区别
【单选题】
2.刀开关的文字符号是___。
A. QS
B. SQ
C. SA
D. KM
【单选题】
3.行程开关的文字符号是___。
A. QS
B. SQ
C. SA
D. KM
【单选题】
4.交流接触器的文字符号是___。
A. QS
B. SQ
C. SA
D. KM
【单选题】
5.熔断器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
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【单选题】
6.热继电器的作用是___。
A. 短路保护
B. 过载保护
C. 失压保护
D. 零压保护