题目内容

检测前照灯发光强度的传感器主要是( )。

A. 发光二极管
B. 光电池
C. 光敏二极管
D. 聚光透镜

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A. 对
B. 错

A. To order a meal.
B. To report a case.
C. To ask for sick leave.
D. To book a hotel room.

A. Her passport.
B. Her smartphone.
C. Her watch.
D. Her computer.

A. She has coughed a lot.
B. She has a high fever.
C. She has got a pain in the stomach.
D. She has got a bad cold.A