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【判断题】
( )任何时刻电阻元件绝不可能产生电能,而是从电路中吸取电能。
A.
正确
B.
错误
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【单选题】Frank Lloyd Wright probably is the greatest architect that the United States has ever produced. He was very【21】and had a natural ability【22】. His buildings were not only beautiful, but they were【23】fu...
A.
conscious
B.
conceited
C.
talented
D.
content
【多选题】下列属于流通加工的作用的选项的是
A.
弥补生产加工的不足
B.
方便用户
C.
提高加工效率及设备利用率
D.
提高原材料利用率
【单选题】在静电场模拟实验中,若提高电源电压,则()
A.
等势线的分布更密集
B.
电场强度不变
C.
等势线的形状会发生改变
D.
电力线形状会产生变化
【多选题】下列属于流通加工的作用的选项是
A.
提高原材料利用率
B.
进行初级加工、方便用户
C.
提高加工效率及设备利用率
D.
降低劳动生产率
【简答题】Most people give little thought to the pens they write with, especially since the printers in modern homes and offices mean that very 小题1: things are hand written. All too often, people buy a pen base...
【单选题】根据短文,回答下列各题。 Frank Lloyd Wright probably is the greatest architect that the United States has ever pro-duced.He was very____21____and had a natural ability____22____.His buildings were not onlybeautif...
A.
conscious
B.
conceited
C.
talented
D.
content
【多选题】下列属于流通加工作用的是()。
A.
弥补生产加工的不足
B.
方便配送
C.
提高劳动生产军
D.
提高物流生产率
【单选题】The car is very small and only 2 people can _________.
A.
fit in
B.
in
C.
sit
D.
buy with
【单选题】下列不属于流通加工作用的是:
A.
优化流通资源与配置
B.
提高流通利润
C.
提高原始产品利用率
D.
延长产品的物流时间
【单选题】下面能把回转运动变为往复运动的机构是_____。 A.凸轮机构 B.链传动机构 C.蜗轮蜗杆机构 D.带传动机构
A.
选A
B.
选B
C.
选C
D.
选D
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