X射线衍射的布拉格方程中,d(HK1),为( )
A.某一点阵面的晶面间距
B.X射线的波长
C.衍射角
D.衍射强度
E.晶格中相邻的两质点之间的距离
参考答案:A
根据提示写出相应的英语。
1. The man, whose job is driving taxi. ________
2. the room where students study ________
3. A kind of sports team, which has eleven players________
4. an activity (活动) that you want others know your friends ________
5. the man who does business ________
预防术后肺不张最主要的措施是
A.氧气吸入
B.蒸汽吸入
C.应用祛痰药物
D.应用大量抗生素
E.多翻身拍背,多做深呼吸,鼓励咳嗽