吗啡镇痛作用机制是
A.抑制中枢阿片受体 B.抑制大脑边缘系统C.激动中枢阿片受体 D.抑制中枢前列腺素的合成E.降低外周神经末梢对疼痛的感受性
参考答案:C
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.
按照《建筑工程建筑面积计算规范》的规定,下列各项中不计算建筑面积的有( )。
A.无围护结构的挑阳台
B.地下人防通道
C.突出外墙的构件
D.建筑物通道
E.与建筑物内不相连通的装饰性阳台