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【单选题】
最常见的妇科肿瘤?A.
子宫肌瘤
B.
子宫颈癌
C.
卵巢癌
D.
子宫内膜癌
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举一反三
【单选题】if a speaker uses a simple example of the well-known Golden Gate Bridge when illustrating the topic of suspension bridge, what is his purpose by doing so?
A.
make his speech vivid
B.
make his delivery more touching and powerful
C.
use example to clarify his idea
D.
use example to reinforce his idea
【单选题】在船舶中央空调的夏季降温工况中，保持合适舱室温度的措施中不包括（）。
A.
采用两组或以上的冷剂电磁阀及热力膨胀阀为同一台空冷器供制冷剂
B.
回风温度控制冷剂电磁阀的开闭
C.
根据空冷器中的冷剂蒸发压力对压缩机进行能量调节
D.
采用空气自动加湿环节
【单选题】What is the main reason that the Golden Gate Bridge is entitled as a world wonder? Choose the most appropriate reason.
A.
Because it is a suspension bridge
B.
Because it is the seventh longest one in the world.
C.
Because it is the second longest one in the world.
D.
Because such a long suspension bridge was built in 1930s when the technology was quite limited.
【单选题】Consider the following experiment. Carefully isolated liver mitochondria are placed in a weakly buffered solution. Malate is added as an energy source, and an increase in oxygen consumption confirms t...
A.
The proton motive force will be reduced to a value of zero.
B.
There will be no change in the proton motive force.
C.
The proton motive force will be increased.
D.
The proton motive force will be decreased but to a value greater than zero.
E.
The proton motive force will be decreased to a value less than zero.
【单选题】A thin rod whose length L is 12.4cm and whose mass m is 135g, suspended at its midpoint from a long wire. Its period T a of angular SHM is to be 2.53s. An irregularly shaped object X is then hung from...
A.
6.12x10 -4 g.m 2
B.
6.12x10 -4 kg.m 2
C.
6.12x10 -5 kg.m 2
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