非洲最深的湖泊是[ ]
A.维多利亚湖
B.贝加尔湖
C.坦噶尼喀湖
D.死海
答案:C
-______ she ______ at six every day?
-No, she doesn't.[ ]
A. Does, get up
B. Does, gets up
C. Is, get up
D. Do, gets up
自救器按其工作原理不同,可分为()大类。
A.一
B.二
C.三