英语INSTRUMENT指（）

[单选题]An instrument that maintains a continuous record of humidity changes is called a（）.A . thermometerB . barometerC . hygrographD . thermograph

[单选题]An instrument that indicates wind direction is known as a(n)（）.A . weather vane，wind vane or wind sockB . hydrometerC . hygrometerD . sling psychrometer

[单选题]Without the instrument，we__________A．cannot’hardly do nothingB．cannot hardly do anythingC．can hardly do nothingD．can hardly do anything

[单选题]英语AMPLIFIER指（）A .放大器B .火灾盘C .检测元件D .通气孔

[单选题]英语ELECTRICAL指（）A .电动的B .气动的C .电磁阀D .转换器

[单选题]英语TRANSMITTER指（）A .变送器B .调节器C .定位器D .转换器

[单选题]英语SWITCH指（）A .仪表B .开关C .按钮D .信号

[单选题]英语MEASURE指（）A .仪表B .测量C .按钮D .信号

[单选题]英语SPRING指（）A .活塞B .开关C .按钮D .弹簧

[单选题]英语DETECTOR指（）A .控制网络B .火灾盘C .检测器D .控制器