下列哪种药物能使血浆皮质醇浓度明显增高（） A.硫喷妥钠 B.氯胺酮 C.氟－芬合剂

President Barack Obama set out his plans for the nation on January 27. At the top of his to-do list: his jobs for Americans, health care and education.

“Although we have our difficulties, our union is strong. We do not give up. We do not stop,” President Barack Obama told American in his State of the Union speech on January 27. Guests and government officials filled the hall of the House of Representatives (众议院).

Obama looked back on his first year in office and explained his plan for the future. He dealt with important matters, including health care, the nation’ s high unemployment, national security (安全) and education. Many times during the 70-minute speech, people in the hall clapped (拍手) their hands happily.

The U.S. law system requires the President to report regularly to government officials. Presidents see the speech as an opportunity to set their goals and encourage the nation.

The President devoted much of his speech to the plight of unemployed (失业的) Americans. “Jobs must be our Number 1 focus (焦点) in 2010,” he said. “People are out of work. They are hurting.” Obama also stressed the value of education. “The best way for people to lead a better life is a first-class education.” he told the nation.

Following the President’s speech, the other party always gets the chance to speak. Bob McDonnell, the new governor of Virginia, spoke for Republicans (共和党人). He agreed with many of Obama’s goals, but pointed out policy difference. He tried to persuade both parties to work together. The President had made the same point earlier in the evening. He promised to hold monthly meetings with members of both parties. “Let’s show the American people,” he said, “that we can do it together.”

小题1:It can be inferred (推断) from the passage that Obama’s speech on January 27 __________.

was made to explain his plan for the future

was welcomed by the government officials present

was given to ask for foreign help

was actually boring

小题2:The underlined word “plight” in para. 5 probably means __________.

A．education

B．safety

C．goal

D．sadness小题3:Which of the following things does Obama consider the most important in 2010?

A．Health care.

B．Jobs.

C．Education.

D．National security.小题4:We can infer from the last paragraph that __________.

Republicans don’ t agree with Obama’ s goals

Obama will try to cooperate with the other party

Bob McDonnell was not clear about the two parties’ policy differences

Republicans thought it difficult for the two parties to work together

It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?

Ocean water is full of salt— and salt water can hold up more weigh than fresh water. See for yourself!

You Will Need:

● 3 cups of warm water

● Measuring cup (量杯)

● Wide-mouthed jar

● Salt

● Spoon

● Raw (生的)potato

You Will Do:

1. Pour 1.5 cups of warm water into the jar.

2. Add 1/3 cup of salt.

3. Stir(搅拌) until the salt is completely dissolved.

4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquid will not mix together.

5. Gently place the potato into the jar. Do not drop it.

What Will Happen:

The potato will sink— but only halfway!

Why?

Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.

The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.

小题1:In the experiment, what should you do right after you pour the water over the spoon?

A．Add the salt to the water.

B．Stir the salt into the water.

C．Place the potato in the jar.

D．Pour warm water into thejar.小题2:In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?

A．It is easier to see what you are doing.

B．It pushes the fresh water to the bottom.

C．It will keep the water from coming out.

D．It will keep the liquids from mixing together.小题3:In which step of the experiment do you add the salt?

A．Step 1

B．Step 2

C．Step 3

D．Step 4小题4:What does the underlined word “gently” mean?

A．Carefully

B．Quickly

C．Secretly

D．Silently

女性，39岁，半年前因肛旁脓肿切开引流，之后局部皮肤反复红肿，破溃，局部痒，应考虑为

A．肛旁疖肿

B．肛瘘

C．混合痔

D．血栓性外痔

E．肛旁慢性肉芽肿

简述金融机构反洗钱工作的原则是什么？

简述城市化的动力机制。