为了节能环保,小明总是随手关闭家里不必要使用的电灯等家用电器。每多关闭一个家用电器,家庭电路里变大的物理量是
Tom is 160cm tall. Sarah is 157cm. So _______A. Tom is taller than Sarah.B. Tom is shorter than Sarah.C. Tom is 3cm shorter than Sarah.
I am 42kg. So I am __ g.A. 420 B. 4200 C. 42000
One meter is_______ centimeter.A. 10 B. 100 C. 1000
Tom lost his book. He's so sad. We can say he is feelingA. black B. red C. blue
Sarah's hair is short. My hair is ~., too.A. short B. shorter C. shortest