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【单选题】
划线在选择尺寸基准时,应使用划线时尺寸基准与图纸上( )一致。
A.
测量基准
B.
定位基准
C.
设计基准
D.
装配基准
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【单选题】市场需求曲线是由各个单独厂商需求曲线横向加总而得到的,当每个厂商要素使用量都增加时,这时市场需求曲线将会(    )。
A.
其下部向里偏转,即做顺时针转动  
B.
其下部向外偏转,即做逆时针转动
C.
不转动    
D.
无法确定
【单选题】Which of the following cannot be sacrificed in a marriage?
A.
The freedom to have other sexual relations.
B.
The desire to follow every of one's impulse.
C.
The will to keep his or her own income.
D.
The wish to be his or her true self.
【简答题】在选用电磁式继电器时,需要考虑 和 。
【简答题】在选用电磁式继电器时,需要考虑电压等级和 。
【单选题】食物中引起过敏反应的过敏原为( )
A.
脂肪
B.
纤维素
C.
蛋白质
D.
单糖或多糖
【单选题】私人物品市场需求曲线是各人需求曲线的( ),公共物品市场需求曲线是各人需求曲线的( )
A.
垂直加总 水平加总
B.
水平加总 垂直加总
C.
水平加总 水平加总
D.
垂直加总 垂直加总
【简答题】在选用电磁式继电器时,需要考虑电压等级和。A. 触点的数量
【单选题】Many Americans believe that ______.
A.
sleep is the first thing that can be sacrificed when one is busy
B.
they need more sleep to cope with the complexities of everyday life
C.
to sleep is something one can do at any time of the day
D.
enough sleep promotes people's drive and ambition
【判断题】主轴除具有足够的强度、刚度和抗震性之外,还应有较高的回转精度。
A.
正确
B.
错误
【单选题】In the opinion of Justice David Souter.
A.
the interests of the minority can be sacrificed sometimes
B.
the deals struck by the union are for the good of the whole
C.
group rights are under the full protection of union contract
D.
it is reasonable to defend the rights granted by the Congress
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