皮皮学，免费搜题
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【单选题】
来自尿道前段表皮细胞是A.
鳞状上皮细胞
B.
复粒细胞
C.
大圆上皮细胞
D.
尾形上皮细胞
E.
底层移形上皮细胞
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举一反三
【单选题】H e continued speaking, my feelings on the matter.
A.
regardless
B.
r egardless of
C.
r egarding
D.
regarding of
【简答题】waste, matter from the bowls e______
【单选题】The tone of this passage is mainly.
A.
humorous
B.
of a matter-of-fact
C.
bitter and ruthless
D.
emotional
【单选题】It has been hypothesized that much of the matter in the universe is 'dark,' i. e. , unseen. Studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than ...
A.
Measurements of the speed of moving galaxies are extremely unreliable.
B.
The workings of gravitational forces are not particularly well understood.
C.
The aggregate mass of visible stars in the galaxies mentioned above can be estimated with some confidence.
D.
The general composition of unseen matter in the universe has been determined.
E.
Without exception, the galaxies mentioned above move toward one another.
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