关于癌性疼痛，不正确的描述是（）。 A.慢性疼痛，是一种疾病 B.癌性疼痛可由肿瘤本

下列离子方程式中，正确的是[ ]

A．NaAlO₂溶液中通入少量二氧化碳：AlO₂^-+CO₂+ 2H₂O=Al(OH)₃↓+HCO₃^-

B．高锰酸钾酸性溶液与草酸溶液反应：2MnO₄^- + 5C₂O₄^2- +16H⁺ =2Mn²⁺ + 10CO₂↑+ 8H₂O

C．用稀硫酸除去铁片表面的铁锈：FeO+ 2H⁺ = Fe²⁺+H₂O

D．用惰性电极电解饱和食盐水：2Cl^- + 2H₂OCl₂↑+ H₂↑+2OH^-

下列各句中没有语病的一句是（    ）（2分）

A．美国三大汽车公司的首席执行官对媒体日前先后表示将自动减薪。

B．炎热的酷暑，在浓荫密布的树下乘凉，的确是一件乐事。

C．“神舟七号”载人航天飞行的圆满成功，是我国航天发展史上的又一座里程碑。

D．通过这次上岗前的集中培训，使他们的专业技能得到了很大的提升。

下面图片反映了中国近代史上两次历史性的巨变，对两次巨变共同点的认识正确的是

A．成为中国民主政治发展的新起点B．改写了半殖民地半封建的历史C．推翻了两千多年的封建制度D．结束了封建君主专制政体

FOB和CIF均由买方订舱。

The prospects for finding life beyond Earth may be brightening. Today, scientists are reporting evidence for yet another potential habitat in our solar system: Saturn’s moon Enceladus. Scientists mining new data from the Cassini spacecraft say they may have found evidence that Enceladus—the planet’s fourth-largest moon—hosts liquid water.
If the results hold up, this would bring to four the number of bodies in the solar system—including Earth—that display active volcanism. And since life as biologists know it requires liquid water and a source of energy, Enceladus would join Jupiter’s moon Europa and Saturn’s moon Titan, as well as Mars, as possible spots beyond Earth where simple forms of life may have gained or still maintain a foothold.
The discovery, however, is bittersweet for many scientists. NASA’s proposed budget for fiscal 2007 calls for a 50 percent cut in its astrobiology program. Although the program is a tiny piece of the agency’s overall spending plan for science, it’s a significant source of money for probing fundamental questions of how and why life emerged on Earth and whether life arose elsewhere in the universe.
A 50-percent cut "is almost a going-out-of-business-level cut" in a vibrant line of research that stands as one pillar supporting President Bush’s vision for space exploration, says planetary scientist Sean Solomon, who heads the Department of Terrestrial Magnetism at the Carnegie Institution of Washington.
Nevertheless, the research in today’s issue of the journal Science is the sort of thing that continues to light a fire under the field. Its report about liquid water under the icy surface of Enceladus is a "radical conclusion," acknowledges Carolyn Porco, who leads the imaging team working with data from the Cassini orbiter. But if the team is right, "we have significantly broadened the diversity of solar-system environments" that might have rolled out the welcome mat "for living organisms," she concludes. Images released last fall show the moon ejecting vast plumes of material near its unexpectedly warm south pole. As the team pondered the evidence, they nixed several explanations, including the idea that the particles in the plumes were driven by vapor billowing out as ice reached the surface and immediately turned into a gas. The last idea standing: Liquid water was venting from reservoirs near the surface, perhaps only tens of meters below the frigid crust. This explanation also helped solve the riddle of puzzlingly high levels of oxygen atoms found in Saturn’s neighborhood.
Confirmation could come with additional flybys. If water—and perhaps life—is present, it wouldn’t be "luxuriant," notes Jeffrey Kargel, a researcher at the University of Arizona at Tucson. It likely would face tough conditions—nasty chemicals, very low temperatures, and little energy to drive it. still, he adds, it’s premature to cross the moon off the list of possible "outposts" for life beyond Earth. Yet the prospect of building on these results could be dimmer with the threat of budget cuts. The proposed reductions post several challenges, researchers say.
One is the loss of important financial leverage. While money for experiments and other research related to astrobiology can come from other funding agencies, such as the National Science Foundation or even the National Institutes of Health, NASA’s program often provides the crucial missing piece that turns demanding and sometimes dangerous fieldwork into exciting results.
One of the biggest successes over the program’s 10-year history has been to help revolutionize the way science is done. Answering questions about the origins of life on Earth and the prospects for life elsewhere require p collaborations. From radio astronomers to biologists and geologists studying the evolution of Earth, groups are working together in ways they never thought of a decade ago, adds Edward Young, a geochemist at the University of California at Los Angeles.
"NASA’s made a lot of progress by making a relatively small investment in a way that has brought disparate experts together from the whole spectrum of physical and biological sciences. It’s a wonderful lesson on how to make progress by crossing these boundaries," Dr. Solomon says. "It would be regrettable to stop that experiment. \

According to the passage, one of the biggest successes over the program’s 10-year history is manifested by ______.

A．the advance in space probing technology

B．the p and smooth multi-disciplinary cooperation

C．the great progress with small investment

D．the discovery of life on some of the planets in the solar system