皮皮学，免费搜题
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搜题
【单选题】
拟步甲科足的跗节特征是________。A.
4-4-4
B.
5-5-5
C.
5-5-4
D.
4-4-5
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】People learned new skills, they met new people, and at the end, somebody pulled me aside and said, "I have to tell you, the last few weeks has been one of the most ______, hardest working experiences ...