1.Auctioning can be dated back to700B.C.
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What do you know about the word “auction”?
钢筋混凝土轴心受压短柱的承载力取决于( )
A. 混凝土强度和纵向钢筋截面面积
B. 箍筋的间距和直径
C. 纵向钢筋的强度和截面面积
D. 长细比
I’m ______ old to be playing this game. I should stop.
A. enough
B. to
C. more
D. too
Do we have ______ soup for everyone?
A. enough
B. too
C. so
D. too many