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【单选题】

Attitudes to Now
Most people say that the USA is progress in fighting . But they don’t know there’s no cure and strongly disagree that "the epidemic is over."
The findings, released Thursday by the Kaiser Family Foundation, reassure activists who have worried that public concern about might disappear in light of recent news about advances in treatment and declines in deaths.
"While people are very optimistic about the advances, they’re still realistic about the fact that there is no cure," says Sophia Chang, director of HIV programs at the foundation.
The Kaiser survey, like a recent USA today Gallup Poll, does find that the number of people ranking as the country’s top health problem has fallen. In the Kaiser poll, 38% say it’s the top
concern, down from 44 % in a 1996 poll; in the Gallup Poll, 29 % say is N0.1, down from I 41% in 1992and67% in 1987.
Other findings from Kaiser, which polled more than 1,200 s in September and October and asked additional questions of another 1,000 s in November..
52% say the country is progress against ; up from 32% in 1995.
51% say the government spends too little on .
86 % correctly say drugs can now lengthen lives: an equal number correctly say that the drugs are not cures.
67% incorrectly say that deaths increased or stayed the same in the past year; 24% know deaths fell.
Daniel Zingale, director of Action Council, says, "I’m encouraged that the American people are getting the message that the epidemic isn’t over. I hope the decision-makers in Washington are getting the same message...We have seen signs of complacency."
Epidemic n.流行病; (流行病的)流行,传播
Reassure vt.向.......一再保证,安慰,使放心,使消除疑虑.
Poll n.民意测验,民意测验结果
Complacency n.自满(情绪),沾沾自喜;满足,满意
The word "message" in the last paragraph means

A.
printed news
B.
contact
C.
meaning
D.
central idea
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举一反三

【单选题】民意测验一般是采用( )

A.
随机抽样
B.
偶遇抽样
C.
滚雪球抽样
D.
等距抽

【单选题】[2012·广元三模]一定条件下,用甲烷可以消除氮的氧化物(NOx)的污染,已知:①CH4(g)+4NO2(g) =4NO(g)+CO2(g)+2H2O(g) ΔH1=-574kJ·mol-1②CH4(g)+4NO(g) =2N2(g)+CO2(g)+2H2O(g)ΔH2=-1160kJ·mol-1下列选项正确的是()

A.
CH4(g)+2NO2(g) =N2(g)+CO2(g)+2H2O(g)ΔH=-867kJ·mol-1
B.
CH4(g)+4NO2(g) =4NO(g)+CO2(g)+2H2O(l)ΔH3>ΔH1
C.
若用0.2mol CH4还原NO2至N2,则反应中放出的热量一定为173.4kJ
D.
若用标准状况下2.24L CH4还原NO2至N2,整个过程中转移的电子为1.6mol

【多选题】在水准测量中,要求前、后视距相等可以消除()对高差的影响。

A.
地球曲率和大气折光
B.
整平误差
C.
水准管轴不平行于视准轴
D.
水准尺

【单选题】Though some people have suggested that women should return to housework in order to leave more jobs for men, the idea has been rejected by both women and men in public opinion poll (民意测验). Lately some...

A.
they should be allowed to attend school to be trained
B.
their jobs should be taken over by the male members of their families
C.
the male employees in their families should receive double wages
D.
their children should also leave their kindergartens