单项选择题 听力原文：M: John is certainly the funniest person in class. He can always make everyone laugh.W: I think I still have to get used to his sense of humor.Q: What does the woman mean?(19)A．She must learn to understand John's humor better.B．She doesn't appreciate John's humor.C．She enjoys John's humor a great deal.D．She thinks John is not funny enough.

配伍题 双侧大脑后动脉距状支TIA（）丨大脑中动脉TIA（）丨大脑前动脉TIA（）丨椎-基底动脉系统TIA（）丨颈内动脉主干TIA（）

单项选择题 A．He didn't expect to buy a lot.B．He had only one bag of groceries.C．The supermarket is just down the block.D．He thought he'd get a ride with the Smiths.