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【单选题】
正等轴测图的轴间角是多少度A.
45
B.
60
C.
90
D.
120
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参考解析：
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【简答题】花生小垄双行行距为80cm,穴距25cm,每穴2粒,则花生每公顷密度是( )株。(保留整数)
【简答题】选择的作用在于增高或降低个体的适合度,一般用()表示。
【单选题】She couldn’t have answered the question if she ________ a few books on world history.A．hadn’t re
A.
35. She couldn’t have answered the question if she ________ a few books on world history. A．hadn’t read
B.
hasn’t read
C.
wouldn’t read
D.
didn’t read
【单选题】She hadn’t read the letter and so was unaware of its ________________ .
A.
contents
B.
intends
C.
contains
D.
comments
【单选题】The frangle industry is a monopoly, with a demand curve 100- p; where p is the price of frangles. It takes one unit of labor and no other inputs to produce a frangle. The Frangle-makers Guild is a str...
A.
the price of frangles will be 50.
B.
the price of frangles will be 25.
C.
the price of frangles will equal the wage rate.
D.
the wage will be 50.
【简答题】动物炭黑
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