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【多选题】
下列有关位错的说法中,错误的是A.
刃型位错与螺型位错的位错线运动的方向均与位错线垂直。
B.
晶体发生塑性变形会导致位错的运动、位错的增殖和交割。
C.
螺型位错的位错线与滑移方向垂直。
D.
负刃型位错的滑移面之下的原子间距变大，受到拉应力。
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举一反三
【单选题】-Please don't make a noise. -_____.
A.
I don't.
B.
I won't.
C.
No, I won't.
D.
yes , I will.
【简答题】根据所给信息，将选项合理配对。(有一项多余) ( )1. Nancy likes ping-pong very much. She often watches ping-pong s on TV on Sundays. She wants to play ping-pong. But she only has a ping-pong ball. ( )2. Mike is ...
【简答题】Raining again? Oh my god, I really hate living in Seattle because it always (rain)_____.
【单选题】Oh, my God! I always think I’m a lucky dog. But this deal has turned out to be a complete failure.
A.
a dead rat
B.
a dead chick
C.
a dead duck
D.
a dead goose
【单选题】第二节 听下面5段对话或独白。每段对话或独白后有几道小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听力原文：M: Hi, Maggie. Nice to see you again. I want all these books here. W: Oh, m...
A.
In a bookstore.
B.
On a bus.
C.
At home.
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