下列各项,属肾的生理功能的是 A.主气 B.行气 C.载气 D.纳气

题型:单项选择题

问题:

下列各项,属肾的生理功能的是

A.主气
B.行气
C.载气
D.纳气

考点:普通考研中医综合中医综合
题型:单项选择题
教室内有一直尺,无论怎样放置,在地面总有这样的直线,使得它与直尺所在直线(  )
A.平行B.垂直C.相交D.异面
题型:单项选择题

—个Ethernet网络和一个Token Ring网络的互连可以通过以下______网络设备实现。

A.网关

B.网桥

C.路由器

D.交换机

题型:单项选择题

月季花是常州的市花,它适宜在酸性土壤中生长.如要给月季花施氮肥,最好选用(  )

化肥名称硫铵尿素碳铵氨水
溶液的pH57811

A.硫铵

B.尿素

C.碳铵

D.氨水

题型:单项选择题

One of the most convenient and cheapest ways to see America is by riding a Greyhound bus. This interstate bus system connects all major cities in the United States, (52) people with frequent and convenient service. The bus system even has an international service (53) makes connection with cities in Canada and Mexico.

Its network even extends to some of the smaller towns and out-of-the-way communities (54) the great interior of the country. Traveling by bus may (55) longer than flying by plane, but the terminals are located in the center of most cities and there is (56) to the downtown area. These buses are comfortable and air-conditioned. They are all equipped with toilets in the rear to (57) the convenience of the passengers, but there are some very severe (58) of conduct which are strictly enforced. On all buses (59) is forbidden and the consumption of alcoholic drinks is not allowed.

(60) bus travel may not be suited to everyone’s taste, it affords budget travelers the (61) to see America in comfort and safety and at a leisurely unhurried pace.

58().

A.terms 

B.rules 

C.clauses 

D.points

题型:单项选择题

当研究人员需要比较三组或者四组群体的差异的时候,应该采用()。

A.两个独立样本的T检验

B.配对样本的T检验

C.方差分析

D.交叉表分析

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