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问题 单项选择题

应急配电盘由独立馈线经（）与主配电盘连接，应急电网平时由（）供电。

A．连接导线／应急电源

B．联络开关／主配电盘

C．连接导线／主配电盘

D．联络开关／应急电源

答案

参考答案：B

问答题

( )The meaning representation of words may change，becoming broader, narrower, or shifted．The word knight once meant “youth”，but was elevated in meaning in the age of chivalry；When Juliet tells Romeo，“I’m too fond.” She is not claiming she likes Romeo too much．She means “I am too foolish．”These are two examples of semantic broadening．
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单项选择题

依据下列哪项可诊断为葡萄胎？（）

A.出现甲状腺功能亢进现象

B.停经8周子宫14周妊娠大

C.停经12周后妊娠反应加剧

D.停经8周后出现不规则 * * 流血

E.停经8周后 * * 内排出血液中有串珠水泡
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