如图所示,画出了几种常用元件及其在电路中的符号,请你在图中元件对应的空白处画出该元件的符号.
空白处缺少的元件符号依次是:
灯 泡:
电流表:
电动机:
-Do you think we can get to the village before dark,Daddy?
-Yes,honey, the car doesn’t break down.
A.even if
B.as far as
C.so long as
D.unless
-2,-4,0,16,( )
A.25
B.32
C.50
D.64