电接点水位计是利用水和水蒸气的______不同的特性来实现水位测量的,它属于______式水位测量仪表。
参考答案:电阻率;电阻
Tom ______ up early. But now he doesn't get up early. [ ]
A.used to get
B.is used get
C.was used to get
D.used getting
下列药材粉末水浸液在紫外灯下有蓝色荧光的是()
A.枇杷叶
B.大青叶
C.番泻叶
D.紫苏叶
E.侧柏叶