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【单选题】
下列属于空间凸轮机构的有( )。
A.
移动凸轮机构
B.
圆柱凸轮机构
C.
盘形槽凸轮机构
D.
凸轮机构
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【简答题】简述胸膜腔穿刺术的适应症
【单选题】We don’t have much _____ with each other.
A.
contact
B.
conrtesy
C.
optimism
D.
cultivation
【判断题】晕厥在发作期会出现眼前发黑、意识丧失,以及贫血外貌
A.
正确
B.
错误
【单选题】成人每天最适宜睡眠时间是
A.
10~12小时
B.
9~11小时
C.
7~8小时
D.
5~6小时
E.
越多越好
【简答题】Whatdoes the speaker suggest we do when we don’t have much time to spend?A. Establishour priorities. B. Increaseour proficiency. C. Tryto focus on what we do. D. Makeevery minute count .
【单选题】3 个使能端,只要有一个不满足要求,其八个输出为()
A.
高电平
B.
低电平
C.
高阻
D.
低阻
【简答题】在新西兰,毛利人见面时以互相____表示问候。
【单选题】We don’t have much homework now and our school bags are ____they used to be.
A.
as heavy as
B.
not as heavy as
C.
as heavily as
D.
not as heavily as
【单选题】—We don’t have much homework this  we go out together? —OK. What about        a movie?
A.
to see
B.
seeing
C.
see
D.
sees
【单选题】We don’t have much contact ____ other students.
A.
with
B.
in
C.
of
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