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【单选题】
提高混凝土拌合物的流动性，可采取的措施是（）A.
增加单位用水量
B.
提高砂率
C.
增加水灰比
D.
在保持水灰比一定的条件下，同时增加水泥用量和用水量
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举一反三
【单选题】In the author's opinion ______ .
A.
the human body can't be compared to a car
B.
the older a person, the more care he needs
C.
too much emphasis has been put on old people's values
D.
it is easy to provide spare parts for old people
【单选题】胃大部切除术后病人餐后20分钟即出现面色苍白、乏力、呕吐等,可预防其再次发生的措施是( )
A.
发作时进食糖类
B.
餐时饮水
C.
餐后做轻微运动
D.
少食多餐
E.
流质饮食
【单选题】If a person gives too much weight to recent information compared to prior beliefs, they would make ________ errors.
A.
framing
B.
selection bias
C.
overconfidence
D.
forecasting
【单选题】What was changed for a poor person in the “New World” compared to their life in the old world?
A.
social rank
B.
financial situation
C.
family relationship
D.
land ownership
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