增强肌力的最佳方法是（）
A.等长收缩
B.等张收缩
C.等速练习
D.主动运动
E.低频电刺激
参考答案：C
Can you ________ to my house to listen to my new CD? [ ]
A. come over
B. come out
C. come in
D. come on
