急性阑尾炎超声检查的具体表现是什么？

关于青春的解读，下列说法不正确的是[ ]

A．生命的意义在于生命的内涵 

B．珍惜生命，让有限的生命焕发无限的光彩

C．青春期有许多的烦恼，我宁愿没有青春 

D．青春期在情绪方面不够稳定，但能做到自我控制

阅读理解

     Starting the day on an egg could keep your blood pressure (血压) under control, research suggests.

Scientists have shown that eggs produce proteins with a function similar to that of powerful blood

pressurelowering drugs.

      The researchers, from the University of Alberta in Canada, showed that when eggs come in contact

with stomach enzymes (酶) they produce a protein that acts in the same way as ACE inhibitors, drugs

taken by millions around the world to lower blood pressure.Fried eggs proved particularly effective, but

more work is needed to show the effects outside a lab and in the human body.

     Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to

work on an egg.They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on

increasing heart disease risks.

      Researcher Professor Bruce Griffin, from the University of Surrey, said, "The wrong beliefs linking

egg eating to high blood cholesterol and heart disease must be corrected.The amount of fat in our diet

has an effect on blood cholesterol that is several times greater than the relatively small amount of

cholesterol found in eggs.The UK public do not need to limit the number of eggs they eat.They can be

encouraged to include them in a healthy diet as they are one of nature's most nutritious foods."

     The British Heart Foundation dropped its threeeggaweek limit in 2005.However, almost half of

Britons believe the limit still applies.

1. From the text we know that ACE inhibitors are________.

A. a kind of medicine

B. a kind of protein

C. a kind of illness

D. a kind of food

2. According to what Professor Bruce said, eggs________.

A. are the most nutritious food

B. have no effect on blood cholesterol

C. can be included in a healthy diet

D. are forbidden to be eaten in the UK

3. We can infer from the text that________.

A. drugs to lower blood pressure will be replaced by eating eggs

B. stomach enzymes mixed with eggs can cure heart diseases

C. most Britons agree the threeeggaweek limit should be dropped

D. about 50% of Britons think eating an egg a day is bad for their health

4. The text is meant________.

A. to introduce scientific findings about eggs

B. to introduce a medicine made from eggs

C. to tell people how to lower their blood pressure

D. to advise people to eat as many eggs as possible

通常情况下，如果可供出售金融资产的公允价值发生较大幅度下降，可以认定该可供出售金融资产已发生减值，应当确认减值损失，通常是指达到或超过（）的情形。

A、5％

B、10％

C、20％

D、30％

化学结构如下的药物符合以下哪些描述（）

A.药名为桂利嗪

B.属于钙通道阻滞剂

C.临床上用于各种疼痛，如神经痛，手术后疼痛及肿瘤痛等

D.临床用于脑血管障碍，脑栓塞，脑动脉硬化症等

E.易溶于水，不溶于氯仿

型钢的接口若完全采用对口形式，且断面厚度在12毫米以上时，应选择（）坡口。