切牙舌向移动1mm需要间隙（）
A.2.5mm
B.3mm
C.2mm
D.1mm
E.1.5mm
参考答案：C
火车的速度比汽车快25%，火车的速度是汽车速度的125%．______．
In Thailand, you shouldn't ________. [ ]
A. go out with your hair wet
B. point to anything with your foot
C. touch a child on the head
D. eat with your left hand
