《电子式电流互感器技术规范》规定，220kV电子式电流互感器二次测量用数字量输出的额

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     People in the nation of Haiti are struggling to recover after a powerful earthquake caused massive

destruction there.

     Tens of thousands of people in the Caribbean nation were  killed, and many more were injured.

The Presidential Palace, which is like the White House in the US, was among the many government

buildings that collapsed. Hospitals were destroyed, as were countless homes. The disaster added more

suffering to  people already struggling to cope with everyday life. Haiti is one of the poorest nations in

the world.

     International aid groups are rushing to provide food, water, and medical aid to Haiti. People

worldwide are donating money to help. Many nations, including the US, are sending aid as well as

money. The US is sending troops to help with rescue and relief efforts, and to police the streets. "This is

a time when we are reminded of the common humanity that we all share, " said US President Barack

Obama.

     The earthquake's epicenter-the point on the Earth's surface directly above where it happened-was

about 10 miles from Haiti's capital, PortauPrince. Experts say it was the worst earthquake in the region

in more than 200 years. The earthquake had a magnitude of 7. 0 on the Richter scale, which is very high. More than 30 aftershocks, or smaller earthquakes, came after the big quake.

     Some Americans have a special concern about the situation in Haiti-family and friends. Hundreds of

thousands of people in the US are from Haiti. They are anxiously seeking news of loved ones. And like

other Americans, they are working to help Haiti recover from this disaster.

     The earthquake in Haiti occurred on a long fault, or crack in the Earth's surface, which goes across

the island. This underground crack separates two giant tectonic (地壳构造上的) plates, or slabs

( 石板) of rock that make up the Earth's outer layer. Along the fault, the plates slowly rub past one

another in opposite directions. But this movement isn't smooth. The plates'edges get stuck for long

periods of time. Eventually, they may suddenly jerk free. That sudden movement is what results in an

earthquake. 

1. From the passage, we can know that the massive earthquake in Haiti did NOT________. 

A. make houses collapse

B. cut the country off from outside aid

C. destroy hospitals

D. kill tens of thousands of people

2. Before the earthquake, Haitians were already struggling because________. 

A. their country was in a war against the US

B. a tornado recently hit the country

C. most of them are very poor

D. a drought has ruined crops

3. The underlined word "magnitude" refers to________. 

A. an earthquake's size or strength

B. how long an earthquake lasted

C. where an earthquake happened

D. when an earthquake happened

4. Which statement of the following is TRUE according to the passage?

A. The earthquake in Haiti is the worst in Caribbean in centuries.

B. The home of the President of Haiti is called the White House.

C. The United States is trying to help Haiti only by sending troops.

D. Hundreds of thousands of Haitians are leaving for the US after the earthquake. 

5. The last paragraph of the passage is mainly about________.

A. the movement of the Earth

B. the structure of the Earth

C. how to make the earthquake forecast

D. what causes an earthquake

红定更正法是在错误的文字或数字上划一红线注销，然后在其上端用蓝字填写正确的文字或数字，并由记账人员盖章，以明确责任。

(每题的备选项中，只有1个最符合题意)

施工人员应在( )内加以覆盖浇水。

A．24h

B．30h

C．12h

D．28h

简述农业剩余劳动力转移的途径。

引起心房颤动最主要的心外疾病是（）

A.慢性支气管炎

B.贫血

C.甲状腺功能亢进

D.睡眠呼吸暂停综合征

E.肥胖症