普萘洛尔的禁忌证是 A．心功能不全 B．重度房室传导阻滞 C．心绞痛 D．支气管哮喘

如果我们不考虑自然环境的保护，只单纯考虑发展经济，那么这样建成的大坝不仅本身会对自然环境产生巨大的破坏。而且不难想象，由于拥有廉价、充沛的电力资源，电解加工业、玻璃纤维业、印染业、造纸业等等耗能大户很可能会趋之若鹜，造成新一轮的高消耗、高污染、高排放的粗放式的增长，由此而引发对自然环境，特别是绿色植被更大规模的破坏。甚至在不久的将来，由于这一地区的绿色植被遭到严重破坏致使水土严重流失，泥沙大量剧增，最终淤积堵坝……尽管这样的悲剧只是一种设想。但是，这样的历史教训，我们却不是未曾有过。
这段文字主要支持的观点是( )。

A．水电站的兴建势必引发对自然环境的巨大破坏
B．由于建坝引起的水土流失只是一种设想
C．经济发展必须要与自然环境保护相协调，不能只重经济，不重环境
D．水电站的建设能够有效拉动电解加工业、玻璃纤维业等工业的发展

生化汤的组成是

A．当归、川芎、桃仁、炮姜、益母草

B．当归、川芎、桃仁、炮姜、甘草

C．当归、赤芍、桃仁、炮姜、甘草

D．当归、川芎、米仁、炮姜、益母草

E．当归、川芎、桃仁、生姜、甘草

（每小题2分，共6分）请回答有关电解水的问题

（1）右图为通电分解水的简易装置，如果用VA和VB分别表示试管A和试管B中生成气体的体积，则VA：VB约等于     。理论上应等于此比例，实际上常大于此比例，原因之一是___________________________________

（2）A试管中电极连接的电池的_______极，B中产生的气体是_______

（3）该实验能证明的结论是___________________________________

Questions 11 to 15 are based on the following passage.

Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference in how long the misery lasts.

The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come.

The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses—flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗), which is, for most people, the best way to fight the flu, according to the ALA.

But if the flu does strike, quick action can help. Although the flu and common cold have many similarities, there are some obvious signs to look for.

Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms.

The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms.

Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome (综合症)，a rare but serious condition of the liver and central nervous system.

There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one.

We learn from the passage that （）

A.one doesn’t need to take any medicine if he has a cold or the flu

B.aspirin should not be included in over-the-counter medicines for the flu

C.delayed treatment of the flu will harm the liver and central nervous system

D.over-the-counter drugs can be taken to ease the misery caused by a cold or the flu

每一处自承式光缆的开剥点与S型固定件间预留10-15cm，施工完毕后，开剥点处用绝缘胶带缠绕6圈，避免自承式蝶形引入光缆加强芯与纤芯脱离。