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C
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聽力構成的要素包括
—ShouldIhandinformrightnow?
—No.______.Andwhenyoufinishit,callmeplease.
若x、y是正數,且,則xy有______。
Oneofthemainreasonsisthatmakingfurniture______vastquantitiesoftrees.
—What’shelike?
—_______.