保证收益理财计划，应保证本金的安全，并到期偿还（）的计划。

数据流程图描述了企业整体的或部门的数据、数据流向、数据加工、数据存储及数据的来源和去向。数据流程图的表示往往是从全局再逐步细化到局部，因此它具有______性。

根据短文内容完成下列句子

     Barbie Doll is very famous in the world. After more than 50 years, Barbie is still popular among

(在......中) girls all over the world: But now the makers of Barbie show their first black dolls to people.

These new black Barbie Dolls are different from the old ones.  They have fuller lips(更丰满的嘴唇)

and a wider nose. They look like black girls very much. So people call them the real black Barbie Dolls.

     The designer(设计师) of the black Barbie Dolls is also black.”I want my daughter and other black

children to know that black is beautiful," she said.

1. Barbie Doll is very __________ in the world.                

2. Barbie Doll is popular among __________ around the world.    

3. The black Barbie Dolls look like __________ very much.            

4. The new Barbie Dolls have __________ lips and a __________ nose.

5. The designer of the black Barbie Dolls is a__________ woman.

埃及长绒棉出口量和产量居世界前列。[ ]

读下图，回答问题。

（1）非洲经济是以__________产品为主的经济，这种经济在结构上表现为“__________经济”。  

（2）这种经济形式的根源是：______________________________。

（3）在国际贸易中，单一商品经济国家往往处于__________地位，其直接原因是：_____________________________________________________________________________________________________________________________________________________________。  

（4）以初级产品为主要经济支柱的国家，粮食和__________严重依赖国外，在国际政治经济斗争中受西方大国的联合制裁。

女性，34岁，胸外伤后呼吸困难，发绀，脉快，体检时见胸壁有一约3cm长开放性伤口，呼吸时伤口处发出嘶嘶声音，伤侧呼吸音消失，叩诊呈鼓音。首先考虑为（）。

A.闭合性气胸

B.开放性气胸

C.张力性气胸

D.损伤性血胸

E.机化性血胸