题干

我市的万亩沂河水面碧波荡漾,对我市市区气温起到了一定的调节作用,主要是因为水的____ 大;冬天里,户外装有水的水缸常会出现破裂是因为水缸里的水结成冰后,密度____ (填“变大”、“变小”或“不变”),从而导致体积增大的结果.

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比热容,变小

同类题4

阅读下列短文,从每题所给的 A、B、C 和 D 四个选项中,选出最佳选项。

    A Canadian man is asking forgiveness for a birdbrained thing he did 17 years ago: inadvertently(无心地) encouraging seagulls to trash his hotel room.

    Back in 2001, Burchill checked into the Fairmont Empress Hotel in Victoria, B.C, for a business meeting. He brought a small suitcase full of Brothers Pepperoni from his hometown to share with former Navy buddies in the area. But his room had no fridge so he opened a window to keep it cool. And then he went for a long walk. That was when things got messy. Really messy. The result was such a housekeeping nightmare that the hotel permanently banned him.

    “I remember walking down the long hall and opening the door to my room to find an entire flock of seagulls in my room. There must have been 40 of them and they had been eating pepperoni for a long time.” Burchill said.

    When he walked into the room, Burchill recalled he frightened the birds. They “immediately started flying around and crashing into things as they desperately tried to leave the room.” The result was a tornado of seagull feathers, pepperoni chunks and fairly large birds whipping around the room. The lamps were     falling. The curtains were trashed. The coffee tray was just disgusting.

    Eventually, Burchill called the front desk and requested help cleaning up the room. “I can still remember the look on the lady's face when she opened the door. ”said Burchill. A short time later, he received a note from the hotel saying he'd been banned for life.

    Recently, Burchill visited the hotel to apologize in person, in hope of making amends with the woman who had to clean the seagull-and-pepperoni-trashed room, but was told she was no longer there.

    “When I was talking to the people at the desk and the manager, they did say that they had heard this story from a long-term employee that works there,” said Burchill, “I was just kind of in and out. I didn't     want to overstay my welcome.” So he apologized and was forgiven. Burchill left them a present of about a pound of Brothers Pepperoni as a peace offering. It seemed to have worked.