冲拳的动作要领错误的是()。
A.收腹、挺胸、抬头
B.转腰、顺肩
C.出拳要速度有力,有寸劲
D.拳的力点在中指
参考答案:D
服装吸收了汗液后,热阻如何变化?
The teacher __________the performance of each student. [ ]
A. estimated
B. evaluated
C. calculated
D. aroused