冻结单位存款的期限不能超过( )个月。A．12B．6C．3D．1

输血前准备中错误的是（）。

A.血型鉴定及交叉配血试验

B.两人进行“三查”“八对”

C.从血库取出的血如太冷，应放在温水中加温

D.取回的血一般应在4h内输完

E.发现血液变质不可使用

民间制泡菜时，常用水封住泡菜坛口，一段时间后，泡菜就有了酸味。据此回答：

（1）用水封住坛口的目的是                                                       。

（2）在制作泡菜时利用了哪一种细菌的作用？                                 。

（3）这种酸味物质是。                

根据句意和所给单词或汉字，填入单词的适当形式。

1. It is obvious that the victim put up a good fight with several ________ (attack) in the murder.

2. I watch a lot of Genius Records have been ________ (break) on TV.

3. —Would you like to put up a drawing of the suspect tomorrow?

    —No, I prefer ________(check) some clues to it.

4. The clubs Daniel takes part in __________(include) a swimming club, a reading club, and so on.

5. It is hard to believe that pretty girl was _________(指控) with theft.

6. The thunderstorm __________(持续) for a long time and caused some traffic accidents on the highway.

7. Some students of our school got good results in the English _________(竞赛) in December.

8. Before you join the Oxfam Walk, you should organize a __________(支持) team.

绘图铅笔硬芯以字母“H”为标记，其中“H”比“6Ｈ”硬。

一切电话中断时如何办理行车？列车占用区间的凭证是什么？