运动性语言中枢位于（）
A.颞横回
B.中央前回
C.额下回后部
D.颞上回
E.额中回后部
参考答案：C
如果工作总量一定，那么工作时间与工作效率成______比例关系．
I （）to go for a walk, but someone called and I couldn't get away.
A. was planning
B. planned
C. had planned
D. would plan
