青海湖主要水产是[ ] A．鲢鱼 B．黄花鱼 C．无鳞湟鱼 D．龙虾

根据首字母或提示写出单词的适当形式。

1. If you place orders now, we would give you a 5% d     .

2. It's generally accepted that smoking is h     to our health.

3. At present the local government is taking m       to reduce pollution.

4. A satisfied     (顾客) is the best advertisement that we hope to have.

5. My aunt is deeply         (虔诚的) and goes to church twice a week.

6. The star         (包围) by a crowd of fans will hold a concert in the Worker's Stadium.

7. The explorer told the boys about his          (奇遇) at the North Pole.

8. The coach said that they needed more        (energy) players on their football team.

9. In my opinion,        (prevent) is more important than treatment.

10. He        (seek) advice from his lawyer on this matter last Sunday.

被困游客位于图中A、B、C、D四点中某一位置，救护直升机停靠在山顶H处，则救护人员能够直接观察到的点是（　　）

A．A点

B．B点

C．C点

D．D点

标况下，把装有224mL HCl气体的烧瓶倒置在水中，水逐渐上升充满整个烧瓶，假设整个过程中，HCl溶质在烧瓶中不外泄，则所得盐酸溶液的物质的量浓度为多少？若用同样体积的Cl₂在光照条件下重复进行该实验，假设各反应均充分进行，产生的各化学物质均在烧瓶中不外泄，则所得溶液的溶质物质的量浓度为多少？（计算结果允许保留分数）

出现“宝光”最多的地方是( )。

A．黄

B．泰山

C．庐山

D．峨眉山

以下可以为表格样式设置的属性有哪些？（）

A.表头行

B.表尾行

C.填色

D.行线与列线