Up to now, he()veryhard－working.A.has beenB.isC.hasD.was - itgle

题目

Up to now, he()veryhard－working.

A.has been

B.is

C.has

D.was

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更多“Up to now, he()veryhard－working. ”相关问题

第1题：

以下ASP程序的写法正确的是?()

A.<；%now%>；
B.<；%=now%>；
C.<；=%now%>；
D.<；=%now%=>。

参考答案：B
第2题：

2． The clean-up．day is only two weeks _______ now，so we must action quickly．
A． from
B． since
C． to
D． for

正确答案：A
2.A【解析】由句意可知，clean-up day离现在还有两周，应用from。
第3题：

对于PN结,设P区电位为Up、N区点位为UN,说法正确的是：（)。
A．Up＞UN
B．Up＜UN
C．Up≥UN
D．Up≤UN

B
第4题：

集成运放中,“虚短”和“虚断”指的是()

A.UP=UN=0IP=IN=0
B.UP=UNIP=IN=0
C.UP=UN=0IP=IN
D.UP=UNIP=IN

答案：A
第5题：

为了提高燃油经济性，近年来出现了减小传动比的趋势，即令（）。
A．up稍大于umax
B．up小于umax
C．up小于等于umax
D．up等于umax

up 稍大于umax
第6题：

请认真听录音，根据录音删去被弱读的单词。
A．Now, at the end of the morning you will all be able to collect a timeable from the college office.
B．Now, at the end of the morning you will all be able to collect a timeable from the college office.
C．Now, at the end of the morning you will all be able to collect a timeable from the college office.
D．Now, at the end of the morning you will all be able to collect a timeable from the college office.

Now, at the end of the morning you will all be able to collect a timeable from the college office.

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