小强每走一步长约0.4米,则他走1万步的路程约为[ ]
A.40米
B.400米
C.40000米
D.4000米
答案:D
The coach should make his players____________of what is happening in the team.
A.sensitive
B.conscious
C.awake
D.aware
牙齿过度磨耗的结果不包括()。
A.牙齿的颊舌径变宽
B.上、下颌牙齿达到最大面积接触
C.面边缘变锐
D.牙体形态改变
E.面下1/3变短