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【多选题】
地下工程按《水利水电工程地质勘察规范》(GB50287-99), 将围岩按其稳定性分为Ⅰ~Ⅴ类。越( )岩石愈( )
A.
小,破碎也愈不稳定
B.
大,破碎也愈不稳定
C.
小,完整也愈稳定
D.
大,完整也愈稳定
E.
不一定
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