【单选题】water do you drink every week?
【单选题】Do you know _______________? [ ]
A.
whether we should water the flowers
B.
whether should we water the flowers
C.
should we whether water the flowers
D.
whether we had watered the flowers
【单选题】一般钳形电流表不适用 ( ) 电流的测量。
【判断题】一般钳形电流表适用于低压电路的测量,被测电路的电压不能超过钳形电流表所规定的使用电压。()
【单选题】听力原文: We all scream for water when thirsty. But do you know But do you know in very hot dry weather, plants also make faint sounds as if they cry out for help? You see, in a plant's stem, there are hu...
A.
They give out faint cries.
B.
They make noises to drive away insects.
C.
They extend their water pipes.
D.
They become elastic like rubber bands.