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【简答题】A bag is useful and the word “bag” is useful, too. Here is an interesting phrase（短语）, “to let the cat out of the bag”. In meaning it is the same as “to tell the secret（秘密）”. And there is an old intere...
【单选题】Was it worth reading?
A.
No, it was too difficult.
B.
Yes, it was useful.
C.
No, it was too dull.
【单选题】The production of too many useful things results ______ too many useless people.
A.
from
B.
out
C.
up
D.
in
【简答题】293K的水在内径为50mm的直管内流动,流速为1m/s,试计算雷诺数,并判断流动形态。
【多选题】以下关于古建筑的说法中,正确的是
A.
中国的建筑艺术在原始社会已开始期芽
B.
北京明清故官是我国现存最大最完整的官殿建筑群
C.
“阴阳五行”学说是“阴阳”和“五行”两说的合流
D.
穿斗式结构方式的特点是可以使建筑物的面阔和进深加大
E.
抬梁式便于施工，最能抗震
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