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【单选题】
冲裁件外形和内形有较高的位置精度要求，宜采用A.
导板模
B.
级进模
C.
复合模
D.
.
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皮皮学刷刷变学霸
举一反三
【单选题】The following statements are consistent with Dr. Myrskylas view about demographic transition EXCEPT that______.
A.
fertility rates in Canada don't rise because of the lack of female-friendly employment policies
B.
some countries experience another transition; fertility rate rises as they become more developed
C.
the rising female employment does not always result in reduced reproductive output
D.
HDI is an important indicator for a country's level of development
【单选题】Last Sunday, a group of pupils talked happily __a loud voice as they went to the countryside bike.
A.
by; by
B.
in; on
C.
in; by
D.
at, by
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