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【判断题】
直接干燥法测水分含量时温度一般在95~105°C,不可提高降低。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】在维护市场秩序中,“看得见的手”是指:
A.
市场调控
B.
国家干预
C.
经营者自己调节
D.
外资影响
【多选题】电压的单位是 ( ) ,电流的单位是 ( ) ,功率的单位是 ( ) ,能量的单位是 ( ) 。
A.
安培
B.
伏特
C.
伏安
D.
E.
焦耳
【单选题】Li Xiaolan works as a secretary in an American company. One day she worked very late. Her boss said to her, “Thanks a lot. That’s a great help.” Li replied, “It’s my pleasure.”
A.
Appropriate.
B.
Inappropriate.
【简答题】many supermarkets have ______ state of the
【判断题】Li Xiaolan works as a secretary in an American company. One day she worked very late. Her boss said to her, “Thanks a lot. That’s a great help.” Li replied, “It’s my pleasure.”
A.
正确
B.
错误
【判断题】电池的功率是指电池在一定放电制度下,单位时间内输出的能量 ,单位为 。比功率则是指单位质量或单位体积电池输出的功率,单位 为 KW/kg 或 KW/L
A.
正确
B.
错误
【简答题】电功率的单位是_ _ ___,能量的单位是_____。
【判断题】Li Xiaolan works as a secretary in an American company. One day she worked very late. Her boss said to her, "Thanks a lot. That's a great help." Li replied, "It's my pleasure."
A.
正确
B.
错误
【判断题】Li Xiaolan works as a secretary in an American company. One day she worked very late. Her boss said,"Thanks a lot. That's a great help.'' Li replied, "It's my pleasure.''
A.
正确
B.
错误
【简答题】电功率 的国际单位是 ,电能 的国际单位是 ,家庭中使用的电能表(又称电度表)测量的是 (选电能或电功率),单位是 (俗称度)。
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