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含羞草的叶子被碰后会合拢,这说明生物具有 [ ] A.生长现象 B.应激性 C.繁殖 D.呼吸
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(1)BE=______= 1 /2 ______. (2)∠BAD=______= 1 /2 ______. (3)∠AFB=______=______. (4)S△AEC=______.
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The family _____ on time, but their car had a flat tyre on the halfway.
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These wild flowers are so special that I would do ________ I can do to save them. [ ]
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