矫直棒料时，为消除因弹性变形所产生的回翘可()一些。A、适当少压  B、用力小  C

根据意思写出诗句。

1．远远看过去是你家，松树柏树中一片坟墓。

_____________________________________________________________

2．院子里长满野生的谷子，野生的葵菜环绕着井台。 

_____________________________________________________________

3．汤和饭一时都做好了，不知道送给准吃。

_____________________________________________________________

4．如果有李广那样的名将率兵守关，决不会让敌人越过阴山来侵扰。

_____________________________________________________________

一次成像平片，未曝光

阅读理解。

     Everglades National Park is the most endangered national park in America. The purpose of making a

national park is to protect the plants and animals that live there. But things that happen outside the park

also affect the life within it.

     Everglades National Park is part of a much larger area known as the Everglades. At one time, water

flowed freely in the Everglades. During the rainy season, water would fill the Kissimmee River. Then it

flowed into Lake Okeechobee. Once the lake became full, water spilled over onto the flatland. From there

a shallow sheet of water moved slowly down the Florida Peninsula. Then it emptied into Florida Bay. This

shallow sheet of water was the Everglades River. It was only a few inches deep. But it was up t0 50 miles

wide and over 100 miles long.

     The Everglades is home to many plants and animals found nowhere else in the world. Today, some of

these plants and animals are in danger of disappearing forever.

     The main reason is that the Everglades is no longer a free-flowing river. Canals have been built to drain

(排干) most of the shallow river. People have also built a dam to hold back water from Lake Okeechobee.

Most of the water from the Everglades is trapped in man-made lakes. Cutting off the flow of water into

Everglades National Park has done more harm than good. Now it threatens the wildlife in the park.

     Water pollution is another reason some plants and animals are disappearing. Years ago, large areas of the

Everglades were drained and turned into farmland. Today the fertilizers (肥料) used on crops are polluting

the water. The "river of grass" is slowly disappearing. Many kinds of plants are disappearing. Animals that

depend on these plants for food no longer have anything to eat.

     The problems facing Everglades National Park are very serious. But there is still hope. Work is already

under way to save the Everglades. The federal government, the state of Florida, and several other groups

are all working together to try to undo the damage.

1. Why was a national park built in America? 

A. To protect people.

B. To protect the plants and animals.

C. To provide a fun place for people.

D. To keep animals from going in the park.

2. The second paragraph mainly tells us _____.

A. how water flowed into the Everglades River

B. how big Everglades River was

C. what the Everglades used to be like

D. what happened to Everglades River during the rainy season

3. The main reason for the animals being endangered is that _____.

A. there's no rain there now

B. people cut the plants that the animals feed on

C. large areas of Everglades were turned into buildings

D. the water flowing into the Everglades has been cut off

4. From the end of the passage, we know that _____.

A. nobody takes care of the Everglades

B. some measures are being taken to protect the environment of Everglades

C. the environment of Everglades will be worse and worse

D. the government is worried about Everglades but has no way

大众传媒产生的标志是（）

A.活字印刷术的发明

B.印刷媒体的推广应用

C.广播的出现

D.网络技术的推广

下列哪项不是按压天枢穴的功能（）。

A、对胃肠有双向的良性调整作用

B、止腹泻

C、治疗便秘

D、增强食欲