标准状况下VL氨气溶解在1L水中(水的密度近似为1 g.mL-1),所得溶液的密

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问题:

标准状况下VL氨气溶解在1L水中(水的密度近似为1 g.mL-1),所得溶液的密度为ρg·mL-1,质量分数为w,物质的量浓度为c mol·L-1,则下列关系中不正确的是 [ ]

A.ρ=(17V+22400)/(22.4+22.4V)

B.w=17c/(1000ρ)

C.w=17V/(17V+22400)

D.c=100Vρ/(17V+22400)

考点:物质的量的有关计算物质的量浓度
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证的病理特点是

A.实证为多

B.寒证为多

C.热证为少

D.虚证为少

E.虚证为多

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WASHINGTON, March 14 (Xinhua) —U.S. President Barack Obama confirmed on Saturday at the White House that China can have confidence in the American economy.

“Not just the Chinese government, but every investor can have absolute confidence in the soundness of investments in the United States,” Obama said.

“There is a reason why even in the midst of this economic downfall you have seen actual increases in investment flows here in the U. S.,”he said.

Obama also noted the U. S. will push for stricter regulation of the financial industry “front and center” at the upcoming Group of 20 Summit (峰会) in London ,ending an argument between the Europe and the United States over whether more focus should be placed on financial regulatory reform.

Chinese Premier Wen Jiabao said earlier Friady he is “a little bit worried ”about the safety of Chinese assets (财产) in the United States ,urging the U. S. government to ensure the security of those assets.

China has invested its huge foreign exchangereserves (外汇储备) in low-risk but low-yield assets ,such as U. S.government bonds (政府债券) ,to play it safe . According to the U.S. Treasury, China held 681.9 billion U.S. dollars  worth of U.S. government bonds as of November.

“China is indeed the largest creditor of the United States, which is the world’ s biggest economy .We are extremely interested in developments in the U. S. economy.”said Wen, adding that he is expecting the effect of the measures taken by the U.S.government to counter the global financial crisis.

Asked to react to Wen’ s concern, Lawrence Summers, director of the U.S. National Economic Council, noted on Friday that the U.S. will be sound steward (管家)of the money it invests.

“This is a commitment that the president has made very clear—we need to be sound stewards of the money we invest.”said Summers in a speech at the Brookings Institution, a leading think tank in the united states.

小题1:Which of the following statements is NOT true according to the passage?

A.Chinese Premier Wen Jiabao expressed his worry about the huge fund to the United States.

B.Obama claimed that China can have confidence in the American economy.

C.Obama said that the U. S. would be “sound stewards of the money we invest.”

D.The U. S. will push for stricter regulation of the financial industry.小题2:It can most likely be inferred from the passage that          .

A.the U. S. is now having great difficulty improving the economy.

B.China will have confidence in Obama forever according to Wen’s speech

C.China held 681.9 billion U.S. dollars worth of U.S.government bonds as of November

D.China will do its best to help the U.S. overcome the global financial crisis.小题3: Chinese Premier Wen Jiabao said earlier Friday he is “a little bit worried”, because       .

A.he doesn’t have confidence in America’ s economy at all

B.China lent a huge fund to the United States

C.he is concerned about the security of China’s assets in the U. S.

D.the U.S. refused to ensure the security of China’s assets小题4:The underlined word “soundness” in the second paragraph can be replaced by “      

A.loudness

B.safety

C.richness

D.friendship

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炔雌醇为

A.子宫平滑肌兴奋药
B.糖皮质激素类药物
C.盐皮质激素类药物
D.子宫平滑肌松弛药
E.性激素类药物

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不同制式制服不得混穿,制服与便服不得混穿。

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下列关于十二经脉的表里关系,说法不正确的是()

A.手太阴与手阳明为表里

B.手厥阴与手少阳为表里

C.足太阳与足太阴为表里

D.足太阳与足少阴为表里

E.足少阳与足厥阴为表里

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