易燃可燃液体的闪点（），其火灾危险性就越大。
A、越高
B、越低
C、大于45℃
D、等于45℃
参考答案：B
井道应适当通风，井道不能用于非电梯用房的通风。（）
Tom was caught cheating in an important exam. _____, he lost a golden chance of taking part in this competition.
A．Actually
B．Surprisingly
C．Obviously
D．Consequently
