电热恒温干燥箱干热灭菌最佳条件选择()。
A.56℃3小时
B.100℃2小时
C.160℃2小时
D.180℃2小时
E.200℃1小时
参考答案:C
用括号内所给词的适当形式填空。
1. Mr King_________(teach) us English last term.
2. It _________(rain) outside. Please take this raincoat with you.
3. Mr Zhang_________(add) that getting up carly was good for your health.
4. Last week our teacher asked us to write some_________(essay) on pollution.
5. I don't know the correct_________(pronounce) of the word.
6. 1 was very_________(impress) when I saw my little son carrying a lot of things for me.
下面哪种一般不会作为烃源岩?()
A.红色泥岩
B.泥岩
C.石灰岩
D.煤岩