电话交换的基本设备组成有哪些？

在沙化土地范围内从事开发建设活动的，必须事先就该项目可能对当地及相关地区生态产生的影响进行（）。

A.预期评估

B.环境规划

C.生态影响评价

D.环境影响评价

关于中国地理，下列说法错误的是：

A.九寨沟国家地质公园以雅丹地貌闻名 

B.藏羚羊主要生活在可可西里国家级自然保护区 

C.张家界国家森林公园处于武陵山脉的腹地 

D.三江并流风景名胜区已被列入《世界遗产名录》

All day long he flew, and at night-time he arrived at the city. “Where shall I put up?” he said; “I hope the town has made preparations.”

Then he saw the statue(雕像) on the tall column.

“I will put up there, ” he cried; “it is a fine position, with plenty of fresh air.” So he flew down and settled just between the feet of the Happy Prince.

“I have a golden bedroom,” he said softly to himself as he looked around, and he prepared to go to sleep; but just as he was putting his head under his wing, a large drop of water fell on him.

“What a curious thing!” he cried; “there is not a single cloud in the sky, the stars are quite clear and bright, and yet it is raining. The climate in the north of Europe is really terrible. ”

Then another drop fell.

“What is the use of a statue if it cannot keep the rain off?” he said; “I must look for a good chimney-pot,” and he determined to fly away.

But before he had opened his wings, a third drop fell, and he looked up, and saw –AH! What did he see?

The eyes of the Happy Prince were filled with tears, and tears were running down his golden cheeks. His face was so beautiful in the moonlight that the little Swallow was filled with pity.

“Who are you? ” he said.

“ I am the Happy Prince. ”

“ Why are you weeping(哭泣) then?” asked the Swallow; “you have quite wetted me.”

“When I was alive and had a human heart, ” answered the statue, “I did not know what tears were, for I lived in Palace of Sans-Souci(无忧宫)，where sorrow is not allowed to enter. In the daytime I played with my companions in the garden, and in the evening I led the dance in the Great Hall. Round the garden ran a very high wall, but I never cared to ask what lay beyond it, everything about me was so beautiful. People called me the Happy Prince, and happy indeed I was, if pleasure be happiness. So I lived, and so I died. And now that I am dead they have set me up here so high that I can see all the ugliness and all the misery of my city, and though my heart is made of lead(铅), yet I can’t choose but weep.”

“ What! Is he not solid gold? ” said the Swallow himself. He was too polite to make any personal remarks out loud.

1. The Swallow wanted to put up when he arrived at the city because_______.

A. he saw the Statue of the Happy Prince.

B. he flew into a lovely golden bedroom.

C. he had a whole-day flight and wanted to sleep.

D. it was night and a rain was likely to come soon.

2. Why did the Swallow feel curious when a drop of water fell on him?

A. Because of the heavy rain though there was no cloud in the sky.

B. Because the statue couldn’t keep the rain off though made of gold.

C. Because he thought it was raining despite bright and clear stars.

D. Because he couldn’t understand why the Happy Prince was weeping.

3. Which of the following is TRUE according to the passage?

A. Seeing the Prince’s beautiful face, the Swallow had pity on him.

B. The Swallow flew away immediately he found it was raining.

C. The Prince lived happily because he didn’t know what tears were.

D. The Swallow had wanted to find a good chimney-pot but failed.

3. What made the Happy Prince weep according to the passage?

A. The high wall stopping him from going out.

B. His not being able to play with his companions.

C. His sudden death and his statue being too high.

D. The hard life of the people and his inability to help.

连铸与模铸相比有那些优越性？