题目内容

配电变压器低压侧应装设熔断器,100kVA以上的配电变压器低压侧熔断器的额定电流一般可按变压器额定电流的()选择。

A. 1倍
B. 1.5~2倍
C. 2~3倍
D. 2.5~3倍

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留取便隐血标本时,检查前3天可摄入的食物是()

A. 瘦肉
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C. 猪肝
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E. 油菜

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You have an Exchange Server 2010 Mailbox server.You need to ensure that deleted mailboxes are kept for 60 days.What should you do?()

A. Create a Retention Policy.
B. Create a managed folder mailbox policy.
C. Modify the properties of the mailbox database.
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顺序执行PUSH EAX和POPEBX两条指令,其功能等同于()

A. MOV EAX, EBX
B. MOV EBX, EAX
C. XCHG EAX, EBX
D. XCHG EBX, EAX

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