以下哪项不是后溪穴的主治病证()A.腰背痛 B.耳聋 C.癫狂病 D.瘰疬 E.疟疾

It is easy for us to tell who our family members are, but do plants recognize(识别) their own family? Some do, scientists say, according to a report by Science News in early 2010.

Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either siblings or strangers.

When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response(反应)suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough.

When jewelweed seedlings(幼苗)were planted with siblings, they grew a few more branches than they usually would if they were alone – but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete.

According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach – where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots.

Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water – so when they’re threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves.

小题1: What does the underlined word siblings mean?

A．Flowers come from foreign countries.

B．Plants growing in different environments.

C．Flowers planted with lots of strangers.

D．Plants that are the same kind.小题2: In the text, the writer mentioned the experiments of Jewelweeds to         .

A．make a comparison

B．introduce a topic

C．describe a pretty flower

D．build a new theory小题3: According to the passage, flowers planted alone will         .

A．grow more leaves than those planted in groups

B．become taller than those with more branches

C．grow fewer leaves than those planted with strangers

D．become ill easily because they can’t get enough shade小题4: What can be the best title for the passage?

A．New Discoveries about Plants

B．How Plants Compete with Each Other

C．Family Recognition among Plants

D．Jewelweeds and the Great Lakes Sea Rockets

有关氨基酸代谢以下哪项错误（）

A.脱氨基生成氨和相应的酮酸

B.脱羧基生成二氧化碳和胺

C.最终产物为CO₂、HO₂和NH₃

D.不同氨基酸有不同的分解代谢酶

E.氨基酸代谢酶缺陷引起继发性氨基酸代谢紊乱

—Could you move the chair?

—_____. [ ]

A. Yes, I could

B. Sure

C. Sure, I can't

D. Yes, I can.

运行单位在项目竣工投产后（）内，向建设管理单位移交在生产技术准备和试运行中形成的文件材料。

A.1个月

B.3个月

C.2个月

D.5个月

近年，在对某大都市青少年犯罪情况的调查中，发现失足青少年中24%都是离异家庭的子女。因此，离婚率的提高是造成青少年犯罪的重要原因。假设每个离异家庭都有子女，则以下哪项如果是真的，最能对上述结论提出严重质疑

A．十多年前该大都市的离婚率已接近1/4，且连年居高不下。
B．该大都市近年的离婚率较前有所下降。
C．离异家庭的子女中走上犯罪道路的毕竟是少数。
D．正常的离异比不正常地维系已经破裂的家庭要有利于社会的稳定。
E．青少年犯罪中性犯罪占很大的比例。