细胞生物学是研究细胞基本（）规律的科学，是在（）、和（）三个不同层次上，以研究细胞的

建设项目中的具有独立的设计文件、建成后能独立发挥生产效能的工程称为（　）。

A．单位工程

B．分部工程

C．单项工程

D．分项工程

会计工作的国家监督，主要是指（）代表国家对各单位的会计工作实行监督。

阅读理解。

     Who hasn't found themselves reaching for the closest food available when they're tired and stressed?

More and more research is proving that this isn't all in our mind. Some foods really do lead to a change

in our moods (心情).

     Carbohydrate (碳水化合物) that calm

     This is how some people medicate themselves with food-by reaching for cookies or pasta (面食)

whenever they're upset. Unfortunately, it doesn't always work. You must eat a meal consisting of 100%

carbohydrate, on an empty stomach, to obtain the serotonin (血清素) increase so that you have a good

mood.

     To get the wished-for effect, you must not eat anything for four hours and then eat at least 30 grams

of straight carbohydrate. Dry cereal (麦片), a piece of bread with jam, or a potato should do the trick.

     Protein (蛋白质) for Power

     Of course, sometimes we don't need to be calm and sleepy. Sometimes we need a great deal of mental

concentration, so this is when it's important to mix protein and carbohydrate. The protein will prevent the

tryptophan (色氨酸) from flooding your brain, and the rise in serotonin won't occur.

     Why dessert makes up Happy

     Fat and sugar cause the brain to let go endorphins (内啡肽), which send pleasure signals throughout

the body. This would be fine, except humans are not particularly good at stopping at one cookie or cake.

     You can also satisfy your sweet tooth by choosing fruit for dessert.

     Timing your meals for energy

     Blood sugar drops after four hours of going without food, causing a decrease in energy. Eating usually

fixes this within 20 to 30 minutes, but don't suppose that eating more will cause a faster increase in energy.

     When you eat has as much of an effect on your mood as what you eat. If you regularly go for a long

period of time between meals, rethink your schedule and plan ahead.

1. The underlined phrase in the third paragraph means _____.

A. be extremely smart

B. intend to cheat someone

C. bring about the desired result

D. do something to amuse people

2. The function of protein is _____.

A. to help you keep calm and sleepy

B. to make you feel energetic

C. to lead you to slowness

D. to increase serotonin in your brain

3. We can infer from the last two parts that _____.

A. fat and sugar can greatly help people feel happy

B. we humans tend to eat lots of cookies and cakes

C. the more we eat, the faster we will gain energy

D. what we eat is more important than when we eat

4. The main idea of the passage is _____.

A. eating for a better mood

B. eating to make you calm

C. eating for more protein

D. eating to make us strong

预防炉管爆破的措施之一是在锅炉启停过程中严格控制升降负荷（）。

A、时间

B、频率

C、次数

D、速度

外商投资企业用从税后利润提取的职工奖励及福利基金支付职工的非经常性奖金，应借记的科目是( )。

A．盈余公积

B．应付福利费

C．应付工资

D．利润分配