【单选题】The small children don’t know _________ .
A.
what is their stockings in
B.
what is in their stockings
C.
where is their stockings in
D.
what in their stockings
【单选题】—Can’t you read the sign, sir? No parking here! —_____.
【判断题】在动力学上,硅氧烷开环聚合属于离子机理,酸或碱均可用作引发剂。
【判断题】只有等到产品完全成熟,才能进行市场测试。
【判断题】在动力学上,硅氧烷开环聚合属于离子机理,酸或碱均可用作引发剂
【单选题】“中国趣味”流行时期,日本知识分子第一次全力以赴地关注中国,是通过()。