多项选择题
对于结构密实的()等材料,其体积可用外形尺寸计算。
A.钢铁B.石头C.玻璃D.液体
多项选择题 材料的基本性质大致可分为()。
单项选择题 Itwas raining hard, ,thepeasants went on with their work. A.but B.and C.however D.although
单项选择题 —Whatdo you want those old boxes? —To put things in when I move to the newflat. A.by B.for C.of D.with