根据海洋环境保护规定（）。 A.船舶排放含油污水时，必须符合排放标准并记入油类记录簿

阅读理解。

     In 1961, a man found a strange cat on his farm in Scotland. The cat's ears were folded, bent forward,

on its head. In fact, this was a new kind of cat. People named it the "Scottish Fold (苏格兰折耳猫)".

     The Scottish Fold has a round head and large eyes. Its neck and legs are short, which makes it look very

cute. Interestingly, all the Scottish Folds are born with straight and unfolded ears. And when they are growing

up day by day, some cats' ears will begin to fold. So, the Scottish Fold comes in two types: folded ears and

straight ears.

     Besides, there is a nickname for the Scottish Fold. It is the "Messenger of Peace". Why? Because the Folds

are sweet and friendly animals. They can get along well with other cats. And unlike some other cats, they can

even get along well with dogs! In many different environments, such as at a noisy house, or in a cat show,

you can see them playing with other animals happily. Well, when you come to a new school, do you think it's

difficult to adapt to the new environment? Perhaps you can learn from the Scottish Fold. That is: always be

sweet and friendly to others.

1. Tie Scottish Fold ________.

A. is born with folded ears

B. is born with straight ears

C. always has folded ears

D. always has straight ears

2. What does the Scottish Fold look like?

A. It has a round head and large eyes.

B. Its neck and legs are short.

C. It looks very cute.

D. All above.

3. Why are the Scottish Folds named the "Messenger of Peace"?

A. Because their ears are folded.

B. Because they look very cute.

C. Because they can get on well with other animals.

D. Because they can stay at a noisy house or in a cat show.

4. According to the passage, what is the writer's suggestion to us when we are in a new environment?

A. We should have a nickname.

B. We should learn from the cats.

C. We should get along well with dogs.

D. We should always be sweet and friendly to others.

4个千、5个十和6个一组成的数是______位数，写作______．

一个课外兴趣小组对某只含Cu、Fe的合金成分含量进行分析（装置见图）。

方法：按图示取a g的Cu、Fe合金和纯铜做为电极，电解液里是含足量的Cu²⁺离子。接通电源进行实验，一直通电到Cu、Fe合金刚好全部溶解时为止。实验结果是：发现在通电实验过程中两电极均无气体产生，纯铜电极上质量增加19.2g，电解液的质量减少0.8g。请回答：

（1）写出电极反应：阳极                                           ；

阴极                                            。

（1）该合金中Cu和Fe的物质的量之比是_________________________。

（3）若另取该合金a g把该Cu、Fe合金与足量的稀硝酸反应后，在溶液中再加入NaOH，能得到的最大沉淀量是________ _g。

—Where is China?

—It is_______ the east of Asia and _______the west of Japan.    [ ]

A. in, in      

B. on. to    

C. in, to      

D. on. on

造成生产者价格指数（PH）持续下滑的主要经济原因可能有（）。

A.失业率持续下滑

B.固定资产投资增速提高

C.产能过剩

D.需求不足