要使式子4a2﹣12a成为一个完全平方公式,则可以加上[ ]
A.9
B.3
C.2.25
D.1.5
答案:A
— Why don't we choose that road to save time?
— The bridge to it _____.[ ]
A. has repaired
B. is repaired
C. is being repaired
D. will be repaired
下面不是利益相关者的特征的是()
A.合法性
B.权力性
C.直接性
D.紧急性