【单选题】You'd better take a raincoat when you go out ______ itis going to rain.
【单选题】I think you'd better ______ there. [ ]
【单选题】You look pale , You'd better ________to see a doctor. [ ]
【判断题】采购品种战略包括运输方式、运输路径、运输商等的选择。( )
【单选题】You'd better ___ to see a doctor. [ ]
【判断题】锁骨上淋巴结是肺癌转移到淋巴结的常见部位。
【单选题】You'd better ______ home now.
【单选题】心理学研究表明,动机强度与问题解决效果的关系可以绘成()。(14年上)