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【判断题】
截面的底面和顶面纵向钢筋配筋量的比值,除按计算确定外,一级不应小于0.5,二、三级不应小于0.3.A.
正确
B.
错误
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举一反三
【判断题】It is hard for us to decide whether Xenophanes clearly stated Socrates' thought.
A.
正确
B.
错误
【单选题】It is hard for us to realize what ______ lives people lived in the Middle Ages.
A.
grave
B.
hard
C.
great
D.
gross
【简答题】It is hard for us to focus more than ________ minutes.
【简答题】l 某企业生产一种产品, L 为唯一可变要素,固定成本既定,短期生产数为 Q=-0.1L 3 +6L 2 +12L , 求: ( 1 )劳动的平均产量函数和边际产量函数; ( 2 )企业雇佣工人的合理范围是多少?
【单选题】So ______ that it is hard for us to imagine its speed.
A.
fast light travels
B.
fast does light travel
C.
light travels fast
D.
does light travels fast
【简答题】it is hard for us to know how much _____ they have put in China's space ______
【单选题】Caffeine can make you more anxious or interfere ____ your sleep.
A.
with
B.
on
C.
at
D.
over
【判断题】Words are the most stable of all linguistic units. Generally speaking, it is hard for us to rearrange the internal structure of a complex word into different order.
A.
正确
B.
错误
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