【单选题】______to the sun for too long, I think, can hurt your skin.
【单选题】__________ yourself to sunlight for too much time will do harm to your skin.
【判断题】利用离车式车轮动平衡机检测车轮动平衡时,必须将测得的轮辋直径、轮辋宽度和轮辋边缘至平衡机机箱的距离输入电脑。
【简答题】Before the 1970s people normally used cash to buy things, and women couldn't even borrow money on their own. But today it's the norm to have a credit card, and it's (1) ________ to be in debt. What's ...
【判断题】对于大量列表的连接, extend() 方法比运算符 + 具有更高的效率。
【简答题】v.补全对话,(10分) A:You don't look well. What- s the matter? B: _____41______ A:Oh dear ! Why don't you go to bed for a rest? B: _____42_____ A:Shall I call him and tell him you're ill? B: _____43_____ A:O...