问题
选择题
______ is known to us is that tobacco contains nicotine and other harmful products, so you should
give up smoking.?[ ]
A. As
B. It
C. What
D. Which
答案
答案:C
______ is known to us is that tobacco contains nicotine and other harmful products, so you should
give up smoking.?[ ]
A. As
B. It
C. What
D. Which
答案:C