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> 下列数据中，最符合实际情况的是 A.人的正常体温为39℃ B.中学生脉搏跳动一次的时间约为3s C.小红上学时步行的速度约是1.1m/s D.一支铅笔的长度约为15dm

问题：

发布时间：2024-09-09

下列数据中，最符合实际情况的是

A.人的正常体温为39℃
B.中学生脉搏跳动一次的时间约为3s
C.小红上学时步行的速度约是1.1m/s
D.一支铅笔的长度约为15dm

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