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【多选题】
使用相对转角计算公式 必须满足的条件有( )。A.
圆轴
B.
塑性材料制成
C.
等截面
D.
应力水平没有超过比例极限
E.
实心轴
F.
不存在分布转矩
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皮皮学刷刷变学霸
举一反三
【简答题】《女娲补天》选自( ),这本书是西汉( ) 及其集体撰写的一部著作。
【单选题】According to the periodic table, ______still some elements undiscovered.
A.
there seem to be
B.
it seems to be
C.
it seems that
D.
there seem
【单选题】偶函数f（x）在（-∞，+∞）内可导，且f'（1）=-2，f（x+2）=f（x-2），则曲线y=f（x）在点（-5，f（-5））处切线的斜率为（ ）
A.
2
B.
-2
C.
1
D.
-1
【单选题】There seem to be two main reasons that women cry more often. One is biological. Up to age 12, boys and girls cry equally often. From then until age 18, the level of the hormone prolactin(催乳激素) rises i...
A.
women are born to be weaker than men
B.
women have more prolactin in their bodies
C.
men are taught not to cry
D.
both B and C
【简答题】东渡服装厂计划全年要生产6000件西装，前3个月完成了20%，照这样计算，全年任务能按时完成吗？（列式计算来说明）
【简答题】东渡服装厂计划全年要生产6000件西装，前3个月完成了20%，照这样计算，全年任务能按时完成吗？（列式计算来说明）
【简答题】请按照所给的成绩报告单完成下面的这封信。开头已给出: Dear parents, I got my report card yesterday. I did OK in some subjects. My math teacher said Yours Jack
【单选题】There seem to be new businesses popping up everywhere.
A.
emerging suddenly
B.
succeeding suddenly
C.
going public suddenly
【单选题】第三篇 There seem to be two main reasons that women cry more often. One is biological. Up to age 12, boys and girls cry equally often. From then until age 18, the level of the hormone prolactin(催乳激素) ris...
A.
women are born to be weaker than men
B.
women have more prolactin in their bodies
C.
men are taught not to cry
D.
both B and C
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