未知题型 听力原文：M：What do you think of biology?W：It's given me a hard time，though it is not as difficult as math．Q：What call we learn about the woman from this conversation?(17)A．She is going to give up biology.B．She spends half of her time on biology.C．To her, biology is difficult, but math is not.D．To her, math is even more difficult than biology.

未知题型 患者因牙齿松动影响进食，欲就诊拔牙。下列可立即拔牙的情况是：

单项选择题 听力原文： Mr. Blue had a nice shop in the main street of a small town. He sold diamond necklaces, watches, clocks and other such things. All went well for some years, and then Mr. Blue's shop was broken into at night twice in one month, and a lot of diamond necklaces was stolen each time. The police had still not succeeding in catching the thief three weeks later, so Mr. Blue decided that he would try to do something about it. He bought a camera, fixed it up in his shop so that it could photograph anyone who broke in at night, and put some very cheap diamond necklaces in front of it for the thief. A few nights later the thief came again, but he did not touch any of the cheap diamond necklaces that Mr. Blue had put out for him. He took the camera instead. It was worth $15,000.What happened to the shop in one month?A．The shop was on fire twice.B．The shop closed twice.C．The shop was broken into twice at night.