An administrator is trying to vMotion a VM from his datacent_答案

【单选题】

An administrator is trying to vMotion a VM from his datacenter to a recovery site. Which is the maximum allowed RTT (Round-Trip Time) latency between source and destination host?___

A. 100 milliseconds

B. 150 milliseconds

C. 15 milliseconds

D. 10 milliseconds

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A. 10.0

B. 8.0

C. 9.0

D. 11.0

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【单选题】

8.空白试验是为了消除( ）。 (A)偶然误差 (B)仪器和试剂误差 (C)方法误差 (D)操作误差

A. 偶然误差

B. 仪器和试剂误差

C. 方法误差

D. 操作误差

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【单选题】

9.原电池是将( )的一种装置。 (A)化学能转变成电能 (B)电能转变成化学能 (C)化学能转变成热能 (D)热能转变成化学能

A. 化学能转变成电能

B. 电能转变成化学能

C. 化学能转变成热能

D. 热能转变成化学能

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【单选题】

10.平行试验是为了消除( )。 (A)偶然误差 (B)仪器和试制误差 (C)方法误差 (D)操作误差

A. 偶然误差

B. 仪器和试剂误差

C. 方法误差

D. 操作误差

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【单选题】

11.水的石灰处理目的主要是将原水的( )转变为难溶于水的化合物沉淀析出。 (A)Ca2+和Mg2+ (B)Na+和K+ (C)HCO3-和CO32- (D)CI-和SO42-

A. Ca2+和Mg2+

B. Na+和K+

C. HCO3-和CO32-

D. Cl-和SO42-

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【单选题】

12.某滤池或机械过滤器第一次反洗时间为8: 00，投人时为8: 30;第二次反洗时间为20: 00，投入时间为20: 30，过滤器运行周期为( )h。 (A) 11 (B) 11.5 (C) 12 (D) 12.5

A. 11

B. 11.5

C. 12

D. 12.5

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【单选题】

13.阳床失效后，最先穿透树脂层的阳离子是( )。 (A) Fe3+ (B) Ca2+ (C) Mg2+ (D) Na+

A. Fe3+

B. Ca2+

C. Mg2+

D. Na+

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【单选题】

14.在相同条件下，消耗再生剂最多的是( )。 (A)顺流再生固定床 (B)逆流再生固定床 (C)双层床 (D)浮动床

A. 顺流再生固定床

B. 逆流再生固定床

C. 双层床

D. 浮动床

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【单选题】

15.强酸、强碱阳阴离子交换树脂再生时，再生液流速一般为（ ) m/h。 (A)1-3 (B)5-7 (C)8-10 (D)10-15

A. 1-3

B. 5-7

C. 8-10

D. 10-15

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【单选题】

16.阴床失效时，最先穿透树脂层的阴离子是( )。 (A)SO42- (B)NO3- (C)CI- (D)HSiO3-

A. SO42-

B. NO3-

C. Cl-

D. HSiO3-

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