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【简答题】
天波传播的频率约在 MHZ到 MHZ之间。
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皮皮学刷刷变学霸
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【简答题】I mean, it’ll be ________ if you and I just push it a ________ with our hands.
【单选题】- You've got your flat funished. haven't you? - Yes. I______some used furniture and it was a real bargain.
A.
will buy
B.
bought
C.
had bought
D.
have bought
【简答题】Passage Two A letter written by Charles Darwin in 1875 has been returned to the Smithsonian Institution Archives ( 档案馆 ) by the FBI after being stolen twice. "We realized in the mid-1970s that it was ...
【单选题】听力原文：M: Excuse me, when will Flight Number BA 981 from New York arrive? W: It was scheduled to arrive at 1:00 pm. But it will be delayed for an hour and a half. When will the plane arrive?
A.
At 1:00 pm.
B.
At 1:30 pm.
C.
At 2:00 pm.
D.
At 2:30 pm.
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