42×4的积的个位是(),320×3的积的个位是()。

题型:填空题

问题:

42×4的积的个位是(    ),320×3的积的个位是(    )。

考点:两位数(多位数)乘一位数
题型:填空题
现有24个劳力和1000亩鱼塘可供对虾、大黄鱼、蛏子养殖,所需劳力与每十亩产值如下表所示.另外设对虾10x亩,大黄鱼10y亩,蛏子10z亩.
  每十亩劳力每十亩预计产值(万元) 
对虾  0.3 2
 大黄鱼 0.2 8
 蛏子 0.1 1.6
(1)用x的式子分别表示y、z;
(2)问如何安排劳力与养殖亩数收益最大?
题型:填空题

Directions: Read the following passage. Fill in the numbered the blanks by using the information from the passage. Write NO MORE THAN THREE WORDS for each answer.

The World Bank, the United Nations and the London School Of Hygiene and Tropica1 Medicine did a study to urge hand-washing around the world. They found that one million lives could be saved each year if people washed their hands with soap often. They said that programs to increase hand-washing with soap could be among the most effective ways to reduce infectious disease.

Doctors say, many diseases can be prevented from spreading by hand-washing. These include pinworms (寄生虫), influenza (流行性感冒), the common cold, hepatitis (肝炎) A, meningitis (脑膜炎) and infectious diarrhea (腹泻).

Hand-washing destroys germs from other people, animals or objects a person has touched. When people get bacteria on their hands, they can infect themselves by touching their eyes, nose or mouth. Then these people can infect other people.  

The experts say the easiest way to catch a cold is to touch your nose or eyes after someone nearby has sneezed or coughed. Another way to become sick is to eat food prepared by someone whose hands were not clean.

The experts say that hand-washing is especially important before and after preparing food, before eating and after using the toilet. People should wash their hands after handling animals or animal waste, and after cleaning a baby. The experts say it is also a good idea to wash your hands after handling money and after sneezing or coughing. And it is important to wash your hands often when someone in your home is sick. The experts say the most effective way to wash your hands is to rub them together while using soap and warm water.They say you do not have to use special antibacterial soap. Be sure to rub all areas of the hands for about ten to fifteen seconds. The rubbing action helps remove germs. Then rinse (冲洗) the hands with water and dry them.

Title:   1   

I.     2   

Many diseases can be prevented by increasing hand-washing with soap.

II. When to do

·Before and after preparing food

·Before eating and after     3   

·After handling animal or animal waste

·After cleaning a baby

·After handling money and after sneezing or coughing

·When     4     in your home

III.     5   

·    6     of hands for about 10-15 seconds

·    7    to use special antibacterial soap

Rubbing hands together while using     8     water

IV.     9   

Hand-washing could be the most     10     to reduce infectious diseases

题型:填空题

高压天然气的导热系数的计算方法不同于粘度的计算方法。

题型:填空题

1958年北戴河中央政治局扩大会议上,主要讨论了1959年的国民经济计划,中心议题是()。

A.当年的钢铁生产和粮食生产

B.当年的钢铁生产和建立农民公社

C.当年的经济增长指标和粮食生产

D.当年的经济增长指标和建立农民公社

题型:填空题

下列哪项不符合休克期的临床表现()

A.皮肤发绀

B.皮肤出现花纹

C.尿量减少

D.动脉血压升高

E.表情淡漠,反应迟钝

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