下列材料中，哪些属于存款人向代理行查询通存通兑业务时提交的材料。（）A.业务回单 B

单词拼写。

1 ．Scientists have made many important_______ (发现)．

2.An____ (突然的)change of policy made everything up.

3 ．The store sells agricultural______ (产品)．

4.I keep my reference books near my desk for_______ (方便)．

5. He ate a light lunch in____ (期望)of a good dinner.

6. He likes inventions and he has applied for a p____ .

7. I've never seen so much m_____  and disorder.

8. It's an interesting idea but there are many p  _____  difficulties.

9. As _____   world is essential to economic growth.

10. He goes to visit his grandparents not regularly but o _____   .

我国《水产品卫生管理办法》规定。对死河蟹应（）。

知识产权只能依一定国家的法律产生，又只能在其依法产生的地域内有效。

男性青春期的第一的信号是（）

A.阴茎加长

B.身高突增

C.睾丸体积的增大

D.体重增加

牲畜育肥农业