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【判断题】
From the figure, we can tell that point D is not in line AF, but in plane ABC.A.
正确
B.
错误
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【单选题】The mini-computer is too expensive. I don't have _____________. [ ]
A.
money enough
B.
enough money
C.
too money
D.
very money
【简答题】生态系统(ecosystem)
【简答题】如果系统的特性已知,根据对输出信号的观察分析,就能推断其相应的输入信号或被测量。这叫做________。
【简答题】If we throw away too much waste and can’t keep good ecosystem,we _________ our future. A．must have destroyed B．could be destroying C．may be destroying D．must destroy
【单选题】- Excuse me, is this______ iPad mini? - No, it isn't.______ is at home.
A.
your; Mine
B.
your; My
C.
yours; My
D.
yours; Mine
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