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【简答题】
一个皮球从高处落下,第一次弹起4.8米,第二次弹起2.4米,第三次弹起1.2米.照这样的规律,这个皮球第四次弹起多少米?皮球一开始从多少米高度下落的?
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【判断题】注平面图形的尺寸时,不标中间线段的定位尺寸
A.
正确
B.
错误
【单选题】在下列平面四杆机构中,( )存在死点位置。
A.
转动导杆机构
B.
双曲柄机构
C.
曲柄摇杆机构
D.
对心曲柄滑块机构
【单选题】听力原文:M: This is it. I know that it is smaller than you wanted, but it is one of the nicest apartments in the building. W: Does it have three bedrooms? M: No. There are two. The master bedroom is quite...
A.
The woman's husband.
B.
The owner of the apartment.
C.
The apartment manager.
D.
The person who occupies the apartment now.
【单选题】在下列平面四杆机构中,()存在死点位置
A.
双曲柄机构
B.
对心曲柄滑块机构
C.
曲柄摇杆机构
D.
转动导杆机构
【单选题】听力原文:M: This is it. I know it is smaller than you wanted, but it is one of the nicest apartments in the building. W: Does it have three bedrooms? M: No. There are two. The master bedroom is quite spac...
A.
The woman's husband.
B.
The owner of the apartment.
C.
The apartment manager.
D.
The tenant who occupies the apartment now.
【单选题】Two of the waders are rather smaller than the same species brought from other places:the swallow is also smaller, though it is doubtful whether or not it is distinct from its analogue.
A.
antonym
B.
episode
C.
simulation
D.
parallel
【单选题】Though smaller than our solar system, a quasar, which looks like an ordinary star, emits more light galaxy.
A.
entirely as
B.
than an entire
C.
entirely than
D.
that the entire
【单选题】听力原文:Man: This is it. I know that it is smaller than you wanted, but it is one of the nicest apartments in the building. Woman: Does it have three bedrooms? Man: No. There are two. The master bedroom ...
A.
2.
B.
3.
C.
4
D.
1
【单选题】听力原文:M: This is it. I know that it is smaller than you wanted, but it is one of the nicest apartments in the building. W: Does it have three bedrooms? M: No. There are two. The master bedroom is quite...
A.
The woman's husband.
B.
The owner of the apartment.
C.
The apartment manager.
D.
The tenant who occupies the apartment now.
【单选题】在下列平面四杆机构中,( )存在死点位置
A.
双曲柄机构
B.
对心曲柄滑块机构
C.
曲柄摇杆机构
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