AD590适用于150°C以下温度检测应用,具有低成本及无需支持电路的特点,其()与绝对温度成比例,使它成为许多温度测量应用的一种很有吸引力的备选方案。
A. 输出电压
B. 输出电流
C. 电阻值
D. 电导率
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传感器的种类多种多样,其性能也各不相同,空调机在室内温度达到设定的温度后,会自动停止工作,空调机内使用的传感器是()
A. 生物传感器
B. 红外传感器
C. 温度传感器
D. 压力传感器
温度变化转换为电势的测温元件是()
A. 热电偶
B. 热敏电阻
C. AD590
D. 应变片
Task 2 : Listen to the following short passage about community gardening. Choose the correct answer to each question.Q: Who owns the land where the speaker is gardening?[音频][音频]
A. The speaker's landlord.
B. The speaker's family.
C. The speaker's friends.
D. The speaker's teachers.
Task 2 : Listen to the following short passage about community gardening. Choose the correct answer to each question.Q: What kind of food is the speaker growing?[音频][音频]
A. Good but expensive food.
B. Fresh, safe, and affordable food.
C. Safe and different food.
D. Fresh, safe, and expensive food.