【单选题】—I feel tired and sleepy. —Why not stop ____ for a while? [ ]
【判断题】pH接近中性的大部分化学毒物对于皮肤和眼的刺激之间有必然联系。
【单选题】(第二章)新民主主义文化纲领指出,新民主主义文化是( )。
【单选题】Tom asks his mother ______ a computer for him [ ]
【单选题】Tom and his mother buy things in the shopping centre.
【单选题】Tom went into a restaurant to _______ .
【单选题】—I feel tired and sleepy. —Why not stop ______? [ ]
【单选题】Tom wanted to buy a new computer, but he couldn’t _____ it. [ ]