企业用固定资产作价偿还了一部分流动负债，则流动比率( )。A．(A) 变大 B．(

既治心悸失眠又治肠燥便秘的药物是()

A．酸枣仁

B．桃仁

C．柏子仁

D．瓜蒌仁

E．郁李仁

下列对于线性链表的描述中正确的是______。

A．存储空间不一定是连续，且各元素的存储顺序是任意的

B．存储空间不一定是连续，且前件元素一定存储在后件元素的前面

C．存储空间必须连续，且前件元素一定存储在后件元素的前面

D．存储空间必须连续，且各元素的存储顺序是任意的

TCP/IP协议的含义（）。

A.局域网传输协议

B.拨号入网传输协议

C.传输控制协议和网际协议

D.OSI协议集

阅读理解。

      Your body, which has close relations with the food you eat, is the most important thing you own, so

it needs proper treatment and proper nourishment (食物). The old saying "an apple a day keeps the

doctor away." is not as silly as some people think. The body needs fruit and vegetables because they

contain vitamins. Many people take extra vitamins in pill form (丸剂), believing that these will make them

healthy. But a good diet is made up of nutritive food and this gives all the vitamins you need. The body

doesn't need or use extra vitamins, so why they waste money on them?

     In the modern Western world, many people are too busy to bother about eating properly. They throw

anyt hing into their stomachs, eating hurriedly and carelessly. The list of illnesses caused or made worse

by bad eating habits is frightening.

1. The old saying referred to in the passage tells us that        .

A. eating apples regularly does lots of good to our health.  

B. the apple is the best among all kinds of fruits  

C. apples can take the place of doctors

D. an apple is a sure cure for illness

2. In the second paragraph, the writer tries to let us know        .

A. our bodies need food, or we can't live  

B. often eating apples is a good habit  

C. taking extra vitamin pills is completely useless  

D. a good diet is of great importance for our health  

3. In the modern western countries        .

A. people won't want to pay more attention to their eating  

B. people throw everything into their stomachs without chewing.

C. list of people's illness are caused or made worse by bad eating habits

D. people are only too busy to cook meals for themselves  

4. From the passage we can draw a conclusion that if we want to keep healthy, we should        .

A. only eat an apple a day  

B. take as many vitamin pills as possible

C. eat properly    

D. throw something into our stomachs slowly and carefully.

怎样防止补加氨水过程中污染杂菌？