儿童智力障碍分为()级
A、三级
B、四级
C、五级
D、六级
参考答案:B
Every year a flood of farmers arrive in Shenzhen for the money-making jobs they _____ before leaving their
hometowns. [ ]
A. promised
B. were promised
C. have promised
D. have been promised
丘脑中发出特异性投射系统的最大核团是()。
A.内侧膝状体
B.外侧膝状体
C.后腹核
D.外侧腹核
E.丘脑前核