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【单选题】
下列关于肾,错误的是A.
肾门凹陷形成的腔
B.
容纳肾盏、肾盂、肾动脉的分支及肾静脉的属支
C.
腔内围绕肾乳头的腔称为肾柱
D.
相邻2~3个肾小盏汇集形成1个肾大盏
E.
肾大盏汇集成1个扁漏斗状的肾盂
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【单选题】We had to wait a long time to get our passports, __________?
A.
won't we
B.
don't we
C.
didn't we
D.
shouldn't you
【判断题】()“Promises” like Why don't we get together one of these days? , though frequently made by Americans, are no commitment.()
A.
正确
B.
错误
【单选题】Things will turn bad if we ______ there on time.
A.
not get
B.
don't get
C.
won't get
【单选题】The reason that scientists cannot cure a common cold is_____.
A.
we don't know how we get cold
B.
we aren't sure the exact kind of cold viruses
C.
we don't know when we will catch cold
D.
we aren't sure the exact scientific method
【简答题】有一根折射率为1.6的玻璃棒,其一端为曲率半径r=30mm的凸球面,另一端为磨砂的平面,问该玻璃棒多长时,远处的物体能清晰成像在磨砂平面上。
【简答题】A．We don't know the long-term effects of it. B．We don't have the technology to get rid of it. C．It is a cause rather than a symptom. D．We have to accept the reality and try to change society.
【单选题】有一根折射率为1.6的玻璃棒，其一端为曲率半径r=30mm的凸球面，另一端为磨砂的平面，问该玻璃棒长为( )mm时，正好使远处的物体能清晰地成像在磨砂平面上。
A.
50
B.
80
C.
100
D.
120
【单选题】They don't think we can get first place in the speech contest, ________ ?
A.
do they
B.
don't they
C.
can we
D.
can't we
【单选题】If we don't hurry up, everything ________ by the time we get to the party.
A.
will be eaten
B.
is eaten
C.
has been eaten
D.
will have been eaten
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