抽运过程
参考答案:
将较低能量状态的粒子转变为较高能量状态粒子的过程。
根据句子意思,用括号中所给词的正确形式填空,每空填一词。
1. Three ______ (four) of the students in our class have handed in their reports.
2. You needn't be frightened because these insects are completely ______ (harm).
3. If you add some lemonade and sugar, the dish will be much ______ (taste).
4. How ______ (active) they are donating money to help the sick student!
5. Some of the film stars had been ______ (sing) before they entered the film industry.
新课程标准从()等几个方面阐述了课程的具体目标。
A.知识与技能
B.目标与过程
C.过程与方法
D.情感态度与价值观
E.达标与测试