对外贸易是“经济增长的发动机”学说是通过考察19世纪英国的经济发展，通过对外贸易带动了新兴国家的经济发展而提出的。( )
参考答案：对
根据首字母提示，完成下面的对话，每空一词。
A: Look, Li Mei! That's my home.
B: Where?
A: Over there, (1)b the tree.
B: Who's that, Zhang Lin?
A: (2)W one? The man or the woman?
B: The woman under the tree.
A: That's my mother.
B: Is the man in a hat your father?
A: Yes, that's my father. He (3)l very young, doesn't he?
B: Do you (4)h any sister?
A: Yes, but she isn't here. I (5)t she's in the room. Let's go and see her.
B: OK.
仪器仪表怎样防潮与驱潮？
