晶格类型
参考答案:
根据化学键划分的晶体结构类型,有离子、原子、金属、分子晶格等。
根据所给单词的适当形式填空。
1. He often _______ (act) as a bad man in movies.
2. My father _______ (save) some money last year and he didn't tell anyone.
3. Are you going to practice _______ (much) or less English this year?
4. The story sounds_______ (interested).
5. He is a _______ (profession) dentist, he will look after your teeth well.
6. In three years they _______ (built) another highway.
7. You have to _______ (practiced) your English harder, or you'll fail in the exam.
8. Do you enjoy_______ (communication) with foreigners?
9. What about _______ (move) to Shanghai?
10. A lot of readers are going to make their New Year's _______ (resolute) tonight.
使感光效应减小的因素是()
A.增大管电流量
B.增大管电压值
C.增大摄影距离
D.增大胶片感度
E.增大增感率