幕幕墙构架的立柱应采用螺栓与角码连接，并通过角码与()连接。
A. 基体
B. 横梁
C. 主体结构
D. 预埋件或钢构件
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ever of the fact that I am not completely【B14】______Recently
A. hated
B. ignored
C. treated
D. welcomed
because they knew from our【B12】______where we had come
A. skin
B. clothes
C. faces
D. politeness
about six points below those of their【B19】______at the age of three.
A. ancestors
B. descendants
C. parents
D. contemporaries
【B17】______a regular bedtime did seem to affect their cognition.
A. having not had
B. having had not
C. not having had
D. not having
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