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【多选题】
CRTSI型双块式无砟轨道的结构组成有A.
双块式轨枕
B.
道床板
C.
水硬性支撑层（路基）或钢筋混凝土底座（桥梁）
D.
自密实混凝土层
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【简答题】The mother couldn’t help laughing at her little boy’s______appearance.
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【简答题】( ) 7 .The mother couldn’t believe a missing person story happened to her family.
【简答题】()The mother returned to her normal life. () Posters with Lorne’s picture were displayed in various places. () Lorne’s parents often took part in their children’s activities. () All the trails of the ...
【单选题】The mother couldn’t help laughing at her little boy’s _____appearance.
A.
amuse
B.
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