东南亚包括中南半岛和______．

一个直角三角形，周长是24cm，三条边长的比是5：4：3．这个直角三角形的面积是多少？

如图所示是甲、乙两种物质的质量和体积的关系图象，下列说法中正确的是（　　）

A．ρ_甲＞ρ_乙

B．ρ_乙=0.5×10³Kg/m³

C．若m_甲=m_乙，则V_甲＜V_乙

D．若V_甲=V_乙，则m_甲＜m_乙

阅读理解。

    Perhaps the most famous theory, the study of body movement, was suggested by

Professor Ray Birdwhistell. He believes that physical appearance is often culturally

programmed. In other words, we learn our looks-we are not born with them. A baby

has generally informed face features. A baby, according to Birdwhistell, learns where

to set the eyebrows by looking at those around-family and friends. This helps explain

why the people of some areas of the United States look so much alike. New Englanders

or Southerners have certain common face features that cannot be explained by genetics

(遗传学). The exact shape of the mouth is not set at birth, it is learned after. In fact,

the final mouth shape is not formed until well after new teeth are set. For many, this can

be well into grown-ups. A husband and wife together for a long time often come to look

alike. We learn our looks from those around us. This is perhaps why in a single country

area where people smile more than those in other areas. In the United States, for example,

the South is the part of the country where the people smile most frequently. In New

England they smile less, and in the western part of New York State still less. Many

southerners find cities such as New York cold and unfriendly, partly because people on

Madison Avenue smile less than people on Peachtree Street in Atlanta, Georgia. People in

largely populated areas also smile and greet each other in public less than people in small

towns do.

1. Ray Birdwhistell believes that physical appearance _____. [ ]

A. has little to do with culture

B. is ever changing

C. is different from place to place

D. has much to do with culture

2. According to the passage, the final mouth shape is formed _____. [ ]

A. as soon as one's teeth are newly set

B. sometime after new teeth are set

C. around 15 years old

D. before birth

3. Ray Birdwhistell can tell what area of the United States a person is from by _____.[ ]

A. what he or she likes best

B. how he or she raises his or her eyebrows

C. how much he or she smiles

D. the way he or she talks

公民遇到困难或合法权益受到侵犯时，可以求助于政府。政府为公民提供的求助或投诉形式主要有（）。

①开设热线电话

②依法建立行政裁决、行政复议和行政诉讼制度

③设立信访部门

④推行电子政务

⑤各级党委的纪检部门

A.①②③④

B.②③④⑤

C.①②④⑤

D.①③④⑤

不属于剧毒品―五双‖管理制度的是（）。

A.双人保管

B.双人收发

C.双人领用

D.双人使用