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【单选题】
散光盘的检测时,假设被检查者觉得5点钟和11点钟的线条最清晰,则判断散光眼的其中一条主子午线在该,另一条主子午线在( )的。
A.
1点钟7点钟线条
B.
5点钟11点钟线条
C.
2点钟8点钟线条
D.
3点钟9点钟线条
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参考答案:
举一反三
【单选题】羟丙基纤维素( )
A.
HPC
B.
HPMC
C.
PVP
D.
EC
E.
CAP
【单选题】Understanding difficult sentences Choose the answer that correctly interprets the sentence from the text. ... to learn the ins and outs of hauling your own water and generating your own power. (Para. ...
A.
to learn each and every aspect of hauling your own water and generating your own power.
B.
… to learn how to pump water into and out of water tanks and how to install a power generator.
C.
D.
nothing
【单选题】直埋电缆穿越农田时的埋设深度一般不低少于( )。
A.
0.7米
B.
0.8米
C.
0.9米
D.
1米
【单选题】如果掺入半导体的是微量五价元素(通常是——P);由于 ( )浓度大大增加,成为多数载流子,因此主要导电方式是( )导电,这样的半导体是( )型半导体。
A.
空穴;空穴;P
B.
电子;电子;N
C.
空穴;空穴;N
D.
电子;电子;P
【单选题】... to learn the ins and outs of hauling your own water and generating yourown power.
A.
... to learn how to punp water into and out of water tanks and how to install a power generator.
B.
... to learn each and every aspect of hauling your own water and generating yourown power.
【单选题】为了改善本征半导体的导电性能,通常采用向本征半导体中掺入某种特定的杂质来实现;假设向本征半导体硅中掺入磷或者砷等,即可获得 半导体,其主要载流子为 。
A.
N 型半导体,自由电子;
B.
N 型半导体,空穴;
C.
P 型半导体,自由电子;
D.
P 型半导体,空穴。
【单选题】Choose the answer that correctly interprets the sentence from the text. ... to learn the ins and outs of hauling your own water and generating your own power. (Para. 6)
A.
… to learn how to pump water into and out of water tanks and how to install a power generator.
B.
… to learn each and every aspect of hauling your own water and generating your own power.
【判断题】3.... to learn the ins and outs of hauling your own water and generating your own power. (Para. 6) A.... to learn how to pump water into and out of water tanks and how to install a power generator. B....
A.
正确
B.
错误
【单选题】Choose the answer that correctly interprets the sentence from the text. ...to learn the ins and outs of hauling your own water and generating your own power.
A.
...to learn how to pump water into and out of water tanks and how to install a power generator.
B.
...to learn each and every aspect of hauling your own water and generating your own power.
【多选题】下列世界市场交易方式中,进口商不拥有进口商口所有权的有( )。
A.
包销
B.
代理
C.
寄售
D.
固定市场交易
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