问题
选择题
Now I have _________ to tell you.[ ]
A. something important
B. important something
C. anything important
D. important anything
答案
答案：A
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Now I have _________ to tell you.[ ]
A. something important
B. important something
C. anything important
D. important anything
答案：A
10@150纵向受力钢筋（As=549.78mm2），则梁的短期刚度Bs最接近于（）×1011N·mm2。