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【单选题】
刀尖位于主切削刃的最高位置时,刃倾角为( )值。A.
负
B.
零
C.
无法确定
D.
正
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举一反三
【单选题】Paragraphs 4 and 5 are about_______.
A.
why the Pebble Mine should not be built in Bristol Bay
B.
who should decide about allowing mining of the resources in Bristol Bay
C.
what the results of a study of the Bristol Bay watershed are
【单选题】Why is Mason not worried about his future?
A.
Because he thinks he has a good job.
B.
Because he is sure things will be better in future.
C.
Because he never worries about anything.
D.
Because he doesn't believe what is said in the report.
【单选题】A: Some people are pretty dubious about the proposals.
A.
I know. We're going to have to find a way to convince them.
B.
Maybe we shouldn't talk about it.
C.
Yes, that's great.
【单选题】How does Marcie feel about her phobia?
A.
She is upset about it.
B.
She is afraid of it.
C.
She is positive about it.
【简答题】大众健美操的基本步伐根据人体运动时对地面的冲击力分为哪几种?
【简答题】健美操基本步伐根据人体运动时对地面的冲击力大小进行分类，冲击力最高的是
【简答题】MPEG-4 departs from its predecessors in adopting a new __________ coding: offering higher __________, and MPEG-4 videos can be composed and manipulated by operations on the visual objects.
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