树根桩施工时，关于注浆，下列说法正确的是( )。A．当采用一次注浆时，泵的最大工作

高血压患者如伴有糖尿病微量白蛋白尿，首选ACEI类药物；如果蛋白尿超过1g／d，首选ARB类药物。

阅读理解。

     Which country is the biggest  country in the world? Well,  look at the map and you'll  know it is Russia.

Then the following are Canada, China, the USA and Brazil. Among them, China has the largest number of people , with  the population reaching 1.3 billion. Canada has the longest coastline.  It is long enough to go

around the earth six times. What is the largest island in the world, do you know?  Is that Hawaii? No, it is

much smaller than the largest island in the world-Greenland.Greenland is to the northeast of Canada. 81% of  its land is covered with ice.  It is very cold  there,  so there are only  about 56,000  people living on the

land.

1.  What is the fifth largest country in the world?

A. China    

B. America  

C. Brazil    

D. Canada

2.   A. Which country has the largest number of people?               

A. Russia    

B. Canada    

C. China    

D. America

3.   How many times can Canada's coastline go around the earth?

A. Five times    

B. Six times  

C. Seven times  

D. Four times

4.  What is the largest island in the world?          

A.  Hawaii    

B. Greenland    

C. Taiwan    

D. Hainan Island

5.  How much of Greenland's land is covered with ice?

A. 80%    

B. 81%    

C. 18%    

D. 13%

个人所得税的税率有两种，它们是( )。

A．比例税率、超额税率
B．比例税率、名义税率
C．名义税率、实际税率
D．实际税率、超额税率

我国的婚姻法明确规定：禁止近亲结婚．这有利于（　　）

A．晚婚

B．晚育

C．少生

D．优生

下列地形地质条件表述中，拱坝特有的要求是（）。

A.坝基应有足够的强度和与坝体混凝土相适应的变形模量，其均匀性和完整性也应较好。承受坝体荷载时，不致产生过大的变形或不均匀变形。要求河谷覆盖层不厚，没有大的顺河断层和河床深槽，全强风化带和卸荷带厚度不大

B.下游河床岩体应具有足够的抗冲能力，避免冲刷坑向上游扩展，威胁大坝安全

C.工程建筑物区附近应有足够的、合乎要求的混凝土天然或人工骨料料源

D.地形基本对称，以V形河谷为优，u形河谷次之；河谷的宽高比最好小于3.5：1，不宜大于6：1；坝肩下游没有深切沟谷