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【简答题】
A．High altitude. B．The cold weather. C．Mild exercises. D．The food.
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反馈参考答案：
举一反三
【单选题】The Columbia has finished the task in the International Space Station and is reported to come back to the earth tomorrow, or to be more _____ , at 3:32p.m. local time.
A.
brief
B.
special
C.
general
D.
specific
【单选题】下面关于立体化学问题的说法,正确的是:
A.
分子中具有一个手性碳的化合物，如果手性碳是 R 构型的，则化合物一定是右旋。
B.
分子中具有手性碳的化合物一定具有手性。
C.
外消旋体和内消旋体都是纯净物。
D.
一对对映体，如果其中一个是右旋的，则另一个一定是左旋的。
【判断题】材料的孔隙率越大,则其吸水率也越大。( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
【简答题】There was always music on in my house when I was little.I loved listening to Metallica, Led Zeppelin, Bob Marley, Michael Jackson. My dad was a DJ, so he played disco, (7)____________, dance, rock, an...
【单选题】My dad and I ____ on the beach.
A.
went swimming
B.
played volleyball
C.
went sailing
D.
go skiing
【单选题】My dad and I played basketball last weekend. She is very beatiful Well done Come on His father was ill
A.
12
B.
234
C.
123
D.
15
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