单项选择题“大雾天气,司机突然发现汽车已开到一个丁字路口,前面是一条小河,问司机当时采取紧急刹车或是紧急转弯,什么方法有可能避免危险?”这个问题属于结构良好问题。 A、正确 B、错误
单项选择题The Chinese enterprises are making every ______ to open up more markets abroad, in particular, the emerging markets in Africa, Latin America, and East Europe. A. efforts B. effort C. effect D. affect