以下为GPRS可以支持媒体接入模式（）A.动态分配 B.扩展动态分配 C.固定分配

下面汉字的拆分错误的一项是[ ]

A.湖—氵、胡—氵、古、月—氵、十、口、月

B.谜—、米—讠、辶、丷、木

C.薄—艹、溥—艹、氵、尃—艹、氵、甫、寸

D.—黍、舀—禾、氽、爫、臼—禾、人、、爫、臼

女，58岁，主诉右耳前区包块20年，缓慢生长，无其他不适。检查见右耳前区5cm×6cm结节状肿物，表面不光滑，有轻度的动度，与皮肤无粘连。

最有意义的辅助检查是（）。

A.唾液分泌量检查

B.细针吸活检

C.唾液成分化验

D.切除活检

E.唾液涂片检查

As NASA prepares to set twin robots loose on the Martian surface and makes plans to send another in 2007, the agency’s long term goal is clear: determine whether the red planet does or ever did harbor life.

But the current search for life is necessarily limited to life as we know it, organisms dependent on liquid water. A SPACE. corn reader recently suggested that "We as humans are arrogant, simply believing that any other form of life will be just like us. "

Researchers devoted to the search for extraterrestrial (ET) have a similar view. "Scientists’ approach to finding life is very Earth-centric," says Kenneth Nealson, a geobiologist at the University of Southern California. "Based on what we know about life on Earth, we set the limits for where we might look on other planets," Nealson said. Within that framework, however, there are extreme cases of life on Earth that suggest the range of places to look on frigid Mars.

Nealson and his colleagues recently found the most extreme sort of organism in a salty liquid lake under the permafrost of Siberia. The organism, named cryopegella, can exist at colder temperatures than any previously discovered. Nealson’s team figures that if the ice at the polar caps of Mars warmed to liquid water, organisms like cryopegella could have awakened and repaired any damage that might have occurred to their various cellular components. That does not mean there are necessarily dormant microbes within the ice caps of Mars. But it does suggest a broader range of potential cradles for life.

Other researchers agree, and a host of so-called "extremophile" discoveries on Earth in recent years indicate the polar regions of Mars might be prime hunting grounds. As on Earth, organisms there might be slathered in natural antifreeze or be able to go dormant for tens of thousands of years, waiting for a brief thaw, their moment in the Sun.

Meanwhile, scientists recognize that there could indeed be life elsewhere in the universe that does not require water. And some astrobiologists are trying to explore the possibilities. But it is a tough problem to approach. In looking for "life as we don’t know it," it’s hard to even imagine what to expect.

Life might or might not exist on Mars. If there are critters there, they might or might not be like bacteria on Earth. In laboratory conditions, scientists in 2001 were able to get one-celled organisms to incorporate an amino acid—a fundamental building block of life—that no other known life uses. The discovery borders on the creation of artificial life, experts said. It also suggests that ET might operate by entirely different rules than those we’re used to.

If life on Mars is fundamentally different from what scientists understand life to be, then current spacecraft and others in the works may well not recognize what’s right under their mechanical noses.

Nealson’s team’s discovery of extreme cases of life on Earth suggests that ().

A. there might be life on Mars that still remains dormant

B. there might be ET in the universe that is like human beings

C. there might be life that is beyond the range of our current search

D. there might be ET elsewhere in the universe that does not require water

下列有关肿瘤与年龄关系的叙述中，不正确的是

A．儿童肿瘤多为软组织及淋巴造血系统肉瘤

B．青年病人的恶性肿瘤往往发展迅速

C．癌多发生于中年以上

D．老年病人的恶性肿瘤发展速度相对较慢

E．肿瘤特点与病人年龄有一定关系

采用工料单价法编制标底的表格，其内容有（）。

A．标底编制说明

B．工程量清单价格表

C．标底价格汇总表

D．主要材料、设备清单价格表

E．分部分项工程工料价格计算表