【单选题】Visitor:How do I get to the bank?I have no knowledge of this area. Policeman:.Cross the road and turn left at the other side.For about l00meters,the bank iS to your left.
【单选题】关于朗伯-比尔定律,说法错误的是( )
B.
朗伯-比尔定律既适用于有色溶液也适用于无色溶液
D.
朗伯-比尔定律中的K为吸光系数,一定条件下为一常数
【单选题】Paragraph 4_________
B.
Where you stand while waiting to cross a road
D.
Where you sit on a bus and how you travel
F.
When pollution levels rise and fall
【简答题】A.Cross was single. B.Cross didn't work. C.Cross never talked about marriage. D.Cross regretted the lack of a wife.
【单选题】任课老师安排作业或测验的情况?是否都有批改、讲解?
【单选题】关于朗伯-比尔定律,说法错误的是( )
B.
朗伯-比尔定律既适用于有色溶液也适用于无色溶液
D.
朗伯-比尔定律中的K为吸光系数,一定条件下为一常数
【单选题】Be careful when the street. [ ]
【单选题】Paragraph 5________
B.
Where you stand while waiting to cross a road
D.
Where you sit on a bus and how you travel
F.
When pollution levels rise and fall