药品的质量指标包括：（）A．有效性指标 B．生物药剂学指标 C．安全性指标 D．稳

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.

计算：（-b）³（-b）⁴（-b）⁵=______（结果用幂的形式表示）

潜伏期延长是指初产妇第一产程潜伏期超过（）。

A.6小时

B.8小时

C.14小时

D.16小时

E.20小时

下列关于肺表面活性物质的描述，错误的是

A．能降低肺的顺应性

B．能降低肺泡表面张力

C．能减小肺的弹性阻力

D．由肺泡Ⅱ型细胞分泌

E．脂质成份为二软脂酰卵磷脂

进入新世纪以来，“金砖四国”巴西、俄罗斯、印度和中国逐渐成为推动世界经济发展强有力的新发动机。统计显示，四国目前所占全球经济份额上升至21.4%。有组织预计，2040年四国经济规模可能会超过七国集团。上述事实表明[ ]

A、国际政治经济秩序发生了根本性的变化

B、南北发展不平衡仍是全球最突出的问题

C、世界政治经济格局正逐步向多极化演进

D、发展经济是发展中国家面临的共同问题