【判断题】在类中可以使用self关键字表示当前的对象。( )
【单选题】一土样的天然含水率 ω=30% ,液限 ω L =35% ,塑限 ω P =20% ,试分别确定该土样的塑性指数 I P 与液性指数 I L 的数值为 。
【单选题】The reason ___ he is absent is ___he has a bad cold.
【判断题】极耐寒的乡土树种可于9月下旬至10月末栽植,但根部需注意防寒。
【单选题】He has a bad cold. He'd better_____________.
A.
drinking some hot water
B.
to drink some hot water
【简答题】一土样的天然含水率 ω =30% ,液限 ω L =35% ,塑限 ω P =20% ,试确定该土样的名称称并判断其处于何种状态。
【多选题】8提髙全口义齿固位和稳定,可采取以下措施( )
【简答题】听下面一段对话,回答第1小题。 1. What's the matter with the boy? A. He has a bad cold. B. He has a headache. C. He has a toothache.
【单选题】He has a bad cold. He shouldn't eat___________for 24 hours. [ ]