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一物体漂浮在水面上，浸入水中的体积是300立方厘米．求：物体受到的浮力？物体的重力？物体的质量？如果物体有2/5的体积露出水面则物体的密度是多大？将此物体放入另一种液体中露出的体积是总体积的3/4，求这种液体的密度是多大．（g=10N/kg）
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【简答题】补全对话。 Harry, Jordan and William are talking about something. H: Hi, Jordan! 1 . J: I'm looking at these things. What do you think of them? H: Well…Hm... 2 . I think they're cool. W: I don't like sungl...
【单选题】I don't think Harry and Bill ____________before,____________?
A.
have met; haven't they
B.
have met; have they
C.
have seen; do
D.
have seen; don't they
【简答题】阅读理解。 The Wizarding World of Harry Potter theme park will open in Florida in 2009, and will provide attractions and rides based on places from the Harry Potter books. The novels' author JK Rowling has...
【单选题】听力原文：W Harry, I just spoke with Sue. Her and Frank's flight arrangements are set; they're landing at South Airport at 5:30 on Tuesday. M That's my busiest day. We have a big deadline on Wednesday. I d...
A.
On Tuesday at 5:30
B.
On Tuesday at 7:30
C.
On Wednesday at 5:30
D.
On Wednesday at 7:00
【单选题】听力原文：M: Do you ever know what Harry is talking about? W: Never, he always beats around the bush. M: Do you think Mark took your bike? M: Yes, but I think it was a mistake. He'd never have taken them o...
A.
He speaks too fast.
B.
He speaks too slowly.
C.
He doesn't speak to the point.
【简答题】根据汉语和首字母写出正确的英语单词。 1. We don't have classes on (周末)______. 2. I think someone in Class Nine ______(找到) his shoes. 3. The two (喜剧片) ______ are very interesting (comedy). 4. His friend's birthday is Dec...
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