试题与答案

诺贝尔化学奖曾经授予美国化学家沙普利斯教授,以表彰他对催化不对称合成的重大贡献.

题型:问答题

题目:

诺贝尔化学奖曾经授予美国化学家沙普利斯教授,以表彰他对催化不对称合成的重大贡献.环氧化--丙烯醇(化学式为C3H6O2)是沙普利斯教授应用不对称合成技术合成的一种重要物质.该物质用于生产一种治疗心脏病的药物.计算下列各值:(结果保留一位小数)

该物质中,C.H.O三元素的质量比为多少?该物质中氧元素的质量分数为多少?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A, B, C, E, F解析:以急性肾炎综合征起病的肾小球疾病需与多种原发、继发肾小球疾病相鉴别,该病人感染后潜伏期较短,可排除链球菌感染后急性肾小球肾炎,但其它病原体感染后急性肾炎不能排除。

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题型:选择题

2010年11月6日《人民日报》载文指出,各地自然条件千差万别,发展水平参差不齐,人民生产、生活习惯丰富多彩,根本不可能走同一的发展模式。只有从当地的自然条件和经济发展的实际水平出发,在充分尊重当地农民群众的生产、生活习惯的基础上选择富有地方特色的发展之路,才能取得事半功倍的良好效果。这说明[ ]

A、存在决定思维

B、思维影响着存在

C、思维与存在不能分离

D、思维与存在同为本原

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题型:阅读理解

阅读理解。

     Driving a car is not just handling controls and judging speed and distance. It requires you to predict what

other road users will do and get ready to react to something unexpected. When alcohol is consumed, it enters

your bloodstream and acts as a depressant (抑制药), damaging eyesight, judgment and co-ordination (协调),

slowing down reaction time and greatly increasing the risk of accidents. Even below the drink driving limit,

driving will be affected.

     Alcohol may take a few minutes to be absorbed into the bloodstream and start action on the brain.

Absorption rate is increased when drinking on an empty stomach or when consuming drinks mixed with fruit

juice. To get rid of alcohol from the body is a very slow process and it is not possible to speed it up with any

measures like taking a shower or having a cup of tea or coffee.

     The present Road Traffic Ordinance states clearly that the limit of alcohol concentration is:

     ● 50 milligrams of alcohol per 100ml of blood; or

     ● 22 micrograms of alcohol per 100ml of breath; or

     ● 67 milligrams of alcohol per 100ml of urine (尿液)

     Drivers who cause traffic accidents, or who commit a moving traffic offence or are being suspected of

drink driving will be tested.

     Any drive found drinking beyond the limit will be charged. The driver declared guilty may be fined a

maximum of HK $ 25,000 and be sentenced to up to 3 years in prison and punished for 10 driving-offence

points; or temporarily banned from driving.

     The same punishment applies to failing to provide specimens (样本) far breath, blood or urine tests without

good excuse.

     Drink driving is a criminal offence. Be a responsible driver, think before you drink. For the safety of

yourself and other road users, never drive after consuming alcohol.

1. The first paragraph is mainly about _____.

A. the introductions of driving skills

B. the damage of drinking to your body

C. the effect of drinking on driving

D. the process of alcohol being absorbed

2. The underlined word "it" in the second paragraph refers to "_____".

A. alcohol

B. absorption

C. blood

D. process

3. Which of the following is TRUE according to the passage?

A. Drinking below the drink driving limit has no effect on driving.

B. Alcohol is taken in more quickly when drunk with fruit juice.

C. Having a cup of tea helps to get rid of alcohol from the body.

D. 50 milligrams of alcohol per 100ml of breath is below the drink limit

4. A drive suspected of drink driving _____.

A. should provide specimens for testing

B. will be forbidden to drive for 3 years

C. will be punished for 10 driving-offence points

D. should pay a maximum fine of HK$25,000

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