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【单选题】
The pit field method is named in such a way mainly because .A.
the field is rotated every year
B.
farmers plough the furrows and hoe the ridges at the same time
C.
only the pits are plowed in the field
D.
the seeds are sowed with equal distance in the field
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【单选题】When using an old Chinese saying to support his argument in a debate, a debater is NOT supposed to_______________.
A.
explain the meaning of the old saying
B.
illustrate why the old saying works in the argument
C.
assert the old saying is of unparalleled wisdom
【简答题】简述维生素D缺乏性佝偻病患儿的骨骼改变。
【简答题】滚动轴承的基本代号(滚针轴承除外)由 、 、 三部分组成。
【单选题】He accidentally_______ he had quarreled with his wife and that he hadn't been home for a couple of weeks. [ ]
A.
let out
B.
took care
C.
made sure
D.
made out
【单选题】市场上某种工人的工资从8元/小时,上升到12元/小时,其供应量从10000上升到14000人,则该种劳动力的供给曲线( )
A.
富有弹性
B.
缺乏弹性
C.
无弹性
D.
有单位弹性
【单选题】市场上某种工人的工资从8元/小时上升到12元/小时，其供应量从10000人上升到14000人，则该种劳动力的供给曲线：（）。
A.
富有弹性
B.
缺乏弹性
C.
无弹性
D.
有单位弹性
【简答题】滚动轴承的基本代号由哪几个部分组成？
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