环境人口容量指一个地区能够持续供养的最适宜的人口数量。[]

治疗滞产，应首选（）。

A.合谷

B.太冲

C.足三里

D.血海

E.至阴

Some expressions in English can be really puzzling. Have a look at the following to see how it challenges your brainpower.

Homeric laughter

The "Homer" in this expression is the Greek poet. People laugh differently. Some laugh silently, while others tend to laugh loudly. "Homeric laughter" refers to laughter of the latter kind. It is at times uncontrollable, and the entire body shakes during the process. This kind of laughter is called Homeric laughter because this is how the gods laughed in Homer's classics.

A three-ring circus

When you refer to a situation as being a three-ring circus, you are saying that it is a situation of complete confusion. There are so many activities taking place all together that they leave you confused or annoyed. The expression comes from the world of entertainment — the circus. The area where the artists perform their acts is called the "ring". In the past, some of the circuses were so grand that they had three acts taking place simultaneously in three different "rings". The audience had to decide which "ring" they wanted to focus on.

In the swim (of things)

When someone is in the swim of things, the individual is actively participating in the things happening around him, as in "I've been ill, but soon I’ll be back in the swim of thing." In the world of fishing, fishermen use the word "swim" to refer to the section of the lake/river where fish can be found in plenty. So, if you are a fisherman and wish to catch a lot offish, where would you be? You would be "in the swim".

Chickens have come home to roost

The word "roost" refers to the place where birds rest. It could be anything — the branch of a tree, a henhouse, etc. The expression is normally used to mean that the bad things that someone did in the past have come back to bite or upset the individual. In other words, one has to face the consequences of the deeds done in the past. The original form of this 700-year-old expression was "curses are like chickens; they always come home to roost".

小题1:Which of the following can best describe the picture?

A．Homeric laughter

B．A three-ring circus

C．In the swim (of things)

D．Chickens have come home to roost小题2:What does the underlined word "simultaneously'(Paragraph 3) mean?

A．At the same time.

B．Step by step.

C．All of a sudden.

D．One after another.小题3:lf you want to know more about such expressions, which website will you probably visit?

A．www.chinadaily.com.cn/sports/China.html

B．www.chinadaily.com.cn/world/university.html

C．www.chinadaily.com.cn/culuture/language.html

D．www.chinadaily.com.cn/entertainment/fashion.html小题4:The passage is written to       .

A．tell readers some old and interesting stories

B．indicate the development of English phrases

C．correct some misunderstandings about words

D．explain the meanings and origins of some phrases

我国人口占世界总人口的( )，耕地面积只占全世界耕地面积的9.5%，人均耕地面积不到世界人均水平的1/2，人均牧草地面积不到世界人均水平的40%，人均林地面积不到世界人均水平的30%，属于资源相对短缺的国家。

A．20%

B．25%

C．30%

D．35%

下列关于抗流感病毒药物的叙述，不正确的是（）

A.可用于流感流行时的预防性服药

B.多用于流感患者的全程治疗

C.流感发病初期使用

D.奥司他韦成人每日用量为150mg

E.甲、乙型流感均可使用神经氨酸酶抑制剂

《中国药典》采用非水滴定法测定硝酸士的宁的含量，指示终点的方法为（）

A.橙黄指示法

B.永停法

C.电位法

D.邻二氮菲指示法

E.结晶紫指示法