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【单选题】
This distinguished director ______ the plot for the prizewinning film while he was still a college student.
A.
conceived
B.
constituted
C.
reflected
D.
calculated
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参考答案:
举一反三
【单选题】用测量0-10%浓度的光干涉甲烷测定器测量瓦斯时,测量精度为()。
A.
0.1%
B.
0.01%
C.
0.02%
D.
0.2%
【简答题】测量范围0~100℃的下限值为(),测量上限为(),量程为() 。
【单选题】光学瓦斯检定器测量瓦斯浓度的范围分为0-10%,其精度为精度()。
A.
0.1%
B.
0.01%
C.
0.05%
D.
0.02%
【单选题】If you have a good chance ______ English with a foreigner, catch it! [     ]
A.
to practice speak
B.
to practice speaking
C.
practice speaking
D.
to practice to speak
【简答题】In practice, this is an advantage to the aeroplane, which is already at a good height when it reaches the polar region and so does not to climb, while at the same time cold air keeps the clouds down l...
【单选题】SDS凝胶电泳分离蛋白质是根据各种蛋白质
A.
pI的差异
B.
分子大小的差异
C.
分子极性的差异
D.
溶解度的差异
【单选题】测量范围为0~10mm的百分表其分度值(测量精度)为()。
A.
0.1mm
B.
0.01mm
C.
0.2mm
D.
0.02mm
【单选题】Doing lots of listening practice is one of the secrets _____ becoming a good language learner, [     ]
A.
in
B.
at
C.
of
D.
with
【单选题】Practice is a good way to ___listening and speaking.
A.
notic
B.
neglect
C.
decrease
D.
improve
【单选题】有一块精度为2.5级,测量范围为0~100kPa的压力表,它的刻度标尺最多可分()格。
A.
40
B.
20
C.
25
D.
50
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