【单选题】Doctors warned agaisnt chewing tobacco as a _____ for smoking
【单选题】Doctors warned against chewing tobacco as a __________ for smoking.
【单选题】._________the fact that doctors have warned that smoking causes cancer, people still keep on smoking.
【简答题】Doctors warned against chewing tobacco as a ____________ (吸烟的替代品).
【简答题】Doctors warned against chewing tobacco ______ (作为吸烟的替代品).
【简答题】Windows 7 中,有四个默认库,包括 、 、 、 。
【简答题】Windows 7 中,有四个默认库,包括 库、 库、 库和 库。
【单选题】Windows 7中,有四个默认库,包括( )、图片库、音乐库、视频库。