皮皮学，免费搜题
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【多选题】
下面描述正确的是( )A.
正温度系数热敏电阻：电阻值随温度的增加而增加
B.
负温度系数热敏电阻：电阻值随温度的减小而减小
C.
CTR热敏元件常用做温度开关
D.
热电阻的灵敏度比热敏电阻高
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】采取从量定额计征的消费税，以不含税增值税的销售额为税基，按照税法规定的税率计算。（ ） 对 错
【单选题】He worked day and night, and finally his dream ________ a teacher ________.A．of becoming; was co
A.
18. He worked day and night, and finally his dream ________ a teacher ________. A．of becoming; was come true
B.
of becoming; came true
C.
to become; came true
D.
to become; was come true
【单选题】So between 1510 and 1514 Copernicus worked on it, gradually _____ his theory until he felt it was complete. [ ]
A.
to improve
B.
to be improving
C.
improving
D.
improved
【单选题】What is suggested about Joseph Collins?
A.
He is a financial reporter.
B.
He has worked for Collins Consulting Company for 3 weeks.
C.
He writes a column for The Citizen Herald.
D.
He will be billed 90 dollars for his subscription.
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