据研究，盲童的智力一般比普通儿童要低。
参考答案：错
Mary is sure to find us easily, for she has a very good sense of____.[ ]
A.direction
B. humor
C. feeling
D. memory
求生者登陆时应在（）。
A.白天涨潮时登陆
B.岛的上风登陆
C.发现岛屿就应登陆
