To which of the following statements would McWhorter most likely agree?

[A] Logical thinking is not necessarily related to the way we talk.

[B] Black English can be more expressive than standard English.

[C] Non-standard varieties of human language are just as entertaining.

[D] Of all the varieties, standard English can best convey complex ideas.

It is true of radical environmentalists that they_____.

［A］ aim at causing damage to companies ［B］ resort to violence to achieve their purpose

［C］ will do no harm to real people ［D］ are divided on opinions about terrorism

导致“心无所倚，神无所归，虑无所定”的情志因素是

A．喜 B．怒 C．思 D．惊 E．悲

According to the last paragraph , development of education

A．results directly from competitive environments.

B．does not depend on economic performance.

C．follows improved productivity.

D．cannot afford political changes.

The discovery that the drugs extend the life span of roundworms could have important implications fox human aging as well. There are strong similarities on the molecular level between the proteins and genes that

A. But Komfeld said scientists will not know about the applicability of the drugs in humans until a similar study is done on humans. “What’s very encouraging is that these drugs were developed to treat humans, and they are well understood, because they’ve been used for a long time, ” he said。

B. Later the scientists discovered that two related anticonvulsant drugs also lengthened the lives of the worms-in the case of one drug, by almost 50 percent. “This was a big surprise to use, Komfeld said. ”“We didn’t think anticonvulsant drugs had any particular relationship to aging. That connection was completely unexpected. ”

C. Roundworms are a poor subject for experiments, because they are not like humans, even though their molecules are similar. For example, they have no bones, nor do they show emotions, making it difficult to know how exactly human subjects would react to these drugs in large quantities. However, using the worms allows experiments to be conducted quickly, because they do not live for long。

D. “Somehow the neural activity seems to regulate the aging of all of the body the skin, musculature, and reproductive tract, ” Kornfeld said. “Somehow the nervous system coordinates the progress of all these tissues, evidently, though the life stages. But we don’t know how it does that. ”

E. The discovery may also shed light on the little-understood aging process. Since the drugs act on the neuromuscular systems of both humans and worms, the findings hint at a link between neural activity and aging。

F. Unlike vertebrates, the worms are ideal subjects for the study of aging because of their short life spans, which last only a couple of weeks in a laboratory. The worm is well known in genetics, and the worm’s genome has been sequenced。

G. Use of this drug has been permitted by law since 1998 and wider use is now expected as a result of the studies. “We can clearly link this drug with human aging, but we still need to find proof, says Kornfeld optimistically. ”

磷酸二羟丙酮是如何联系糖代谢与脂肪代谢途径的?

下列关于盐酸分泌的叙述，哪一项是错误的?

A.H+逆着浓度差被分泌至胃内

B.H+的分泌依赖壁细胞膜上H+-K+-ATP酶的作用

C.合成盐酸所需的C1-来自血浆

D.盐酸分泌的过程中不需要碳酸酐酶参与

E.胃酸分泌大量增加时，血浆pH升高

实践证明，人民代表大会制度

A．是符合中国国情、体现中国社会主义国家性质、能够保证中国人民当家做主的根本政治制度和最高实现形式

B．是党在国家政权中充分发扬民主、贯彻群众路线的最好实现形式

C．是中国社会主义政治文明的最重要载体

D．是我国社会主义民主政治最鲜明的特点

___________

[A] inflating

[B] expanding

[C] increasing

[D] extending

男性，50岁，突发上腹痛8小时，剧烈，伴恶心呕吐。查体：末梢循环差，血压95／60 mmHg，巩膜无黄染，全腹腹膜刺激征(+)，以上腹为重，移动性浊音(+)，肠鸣音弱，腹穿抽出血性液。为明确诊断，哪项检查最有效?

A．B超 B．CT

C．MRI D．ERCP

E．腹穿液淀粉酶