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【单选题】
成年动物发生骨软症的早期症状是（ ）A.
跛行
B.
骨质软化
C.
运动障碍
D.
异食癖
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【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.
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