题目内容

I found my alternative home — my backpack, which has the same function as home: carrying items and collecting on the road.

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My conclusion (Para. 6): A home is like a backpack and I keep in my backpack _______________________.

The backpack serves as the source of _, the witness of__________________________, and the record of the steps I took.

土的抗剪强度由哪两部分组成?什么是土的抗剪强度指标?

土体颗粒粒径d=0.25mm，该土体按照粒径粗细，应当属于（）。

A. 巨粒土
B. 粗粒土
C. 细粒土
D. 黏土