—It's getting late. I really _____go now, my daughter is home alone.
A:may
B:can
C:must
D:dare
已知:还原性HSO3¯>I¯,氧化性IO3¯> I2。在含3 mol NaHSO3的溶液中逐滴加入KIO3溶液。加入KIO3和析出I2的物质的量的关系曲线如下图所示。下列说法不正确的是( )
Please write ___me and tell me ____yourself.
如图所示,当带正电的绝缘空腔导体A的内部通过导线与验电器的小球B连接时,问验电器是否带电?