运动中枢位于大脑皮层（）
A.额叶中央后回
B.额叶中央前回
C.顶叶中央后回
D.额叶额中回
E.额叶额下回
参考答案：B
Now many parents send their children to foreign countries, _______ they want them to get a better
education. [ ]
A. until
B. though
C. because
某一段时间内（）的电能可以用电度表来测量。
