下列各句中加粗的词语使用恰当的一句是。[ ] A．这家书店店堂不大，书种不多，但

按提示完成单词。

1. Betty's _____ (生日) is coming. We will buy her a present.    

2. Don't buy that dress．It's too _____ (贵).    

3. Whose _____ (随身听) are these?  

4. Idon't think the black coat _____ (适合) you. You may change it.

5. Are there any _____ (折扣) on this year's clothes?

6. The sports shoes on the table are one of the _____ (play).

7. How _____ (care) you are! You have made such a mistake.  

8. He held a party without _____ (invite) us.

9. There are many _____ (visit) in our city in summer.

10. He was _____ (happy) because he got 58 points in the exam.

The headmaster and secretary as well as the teachers      discussing LiBai’s New Selected Poems that      published last month.

A．are; were

B．is; were

C．are; was

D．is; was

（2011年广东，19题）请完成下面填空：

（1）性质决定用途。以下连线正确的是_______（填字母）：

（2）用Fe粉制成的食品保鲜剂使用一段时间后，会逐渐变为______ ______色的氧化铁。

（3）铁制品易发生锈蚀，请写出一种防止铁生锈的方法________ ___________。

（4）用氯化物_____ _____（填化学式）溶液可以一次性验证Fe、Cu、Ag三种金属的活动性顺序。

药品生产企业在启动二级药品召回后，应当在多长时间内将调査评估报告和召回计划提交给所在地省级药品监督管理部门备案（）

A.24小时内

B.48小时内

C.72小时内

D.84小时内

轧制时轧件高度减少，被压下的金属除在长度方向上延伸外，还有一部分金属沿（）流动，使轧件的（）发生变化，这种横向变形称为（）。