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【单选题】
2和8的等比中( )A.
4
B.
-4
C.
4或-4
D.
5
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【单选题】某企业月初甲产品在产品成本7800元，本月为生产甲产品投入生产费用18000元，月末在产品成本为6200元，则本月完工人库的甲产品成本为（ ）元。
A.
25800
B.
18000
C.
19600
D.
11800
【简答题】【目的】练习产品成本的计算。【资料】假设本月甲产品发生生产费用6 000元,期初甲产品成本为4 000元,期末甲产品成本为2 000元。要求:根据以上资料,计算本月完工甲产品成本。
【单选题】航向正东,受南风、南流影响,则风压差α和流压差β为 。
【单选题】What do we learn about the first of the Chinese high-speed trains? PASSAGE China is designing its next generation of trains that can carry passengers at a top speed of 500 kilometers (310 miles) an ho...
A.
It operated at the top speed of 200km/h.
B.
It rolled off the assembly line in 2007.
C.
It ran for the distance about 3,000km.
D.
It was designed for the mild winter.
【单选题】根据相关统计，当城市化水平为30%～50%时，人均GDP一般为( )。
A.
1000美元以下
B.
1000～3000美元
C.
3000～7000美元
D.
7000美元以上
【单选题】What do we learn about the first of the Chinese high-speed trains? PASSAGE PASSAGE PASSAGE China is designing its next generation of trains that can carry passengers at a top speed of 500 kilometers (...
A.
It operated at the top speed of 200km/h.
B.
It rolled off the assembly line in 2007.
C.
It ran for the distance about 3,000km.
D.
It was designed for the mild winter.
相关题目：
【单选题】航向正东,受南风、南流影响,则风压差α和流压差β为 。