问题
选择题
As second-hand smoking is more harmful and dangerous, people want a total _____against smoking in public．
A．ban
B．brake
C．breakthrough
D．boundary
答案
答案：A
题目分析：考查名词辨析：句意：因为二手烟更有害更危险，人们想完全禁止公共场合抽烟。A．ban禁止， B．brake刹车，C．breakthrough突破，D．boundary边界，选A。