一般情况下，使用调高垫板调线路水平时，每处调高垫板不得超过（）。A.1块 B.2块

属于平纹丝织物的是

A．麻纱

B．府绸

C．美丽绸

D．杭纺

某同学在实验室里将体积为1.0×10^－3m³的实心正方体木块放入水中，如图所示，静止时，其下表面距水面0.06m。请根据此现象和所学力学知识，计算出两个与该木块有关的物理量（不要求写计算过程，取10N/kg）。

（1）_____________________________________；

（2）_____________________________________。

Among all the fast growing science and technology, the research of human genes（基因）, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic discussed by people.

The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied（应用）, not only these two diseases can be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life span(寿命) can be prolonged.

Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial family being a good example, have hereditary diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing about hereditary diseases. But gene technology can solve this problem perfectly. The scientists just need to find the wrong gene and correct it and a healthy child will be born.

Some people are worrying that the gene research can be used to manufacture (produce) human beings in large quantities. In the past few years, scientists have succeeded in cloning a sheep; therefore these people predict that human babies would soon be cloned. But I believe cloned babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.

小题1:What does “these two killers” in the second paragraph refer to?

A．Gene technology and another treatment of the two diseases.

B．The two murderers who killed the cloned baby

C．The two diseases of cancer and heart disease

D．Hereditary diseases and cancer小题2:What’s the main idea of the third paragraph?

A．How gene technology can be applied to cure family diseases.

B．Gene technology can be used to clone human babies.

C．Gene technology can help people to give birth to a baby.

D．Gene technology can help the English imperial family out小题3:What is the main purpose of writing this passage?

A．Expressing the writer’s idea that gene technology will benefit people

B．Telling people the advantages of gene technology

C．Telling the readers that gene technology will not benefit people

D．Explaining that gene technology will also do harm to the humanity小题4:Which of the following worries people by using this technology?

A．Scientists have already successfully cloned sheep.

B．Most couple will normally give birth to babies.

C．A good number of babies will be cloned

D．The government will take action to control it.

下述（）在水平静载试验时不能取水平位移为10mm（或6mm）时所对应的荷载为单桩水平承载力设计值。

A.钢桩 

B.素混凝土桩 

C.混凝土预制桩 

D.配筋率大于0.65%的灌注桩

营业期间会计出纳人员需暂时离开时，要将自己管理的现金、有价单证、印章、重要凭证等入柜上锁。