建设工程项目施工图预算的审查方法中，能较快发现问题的方法是（）。
A．“筛选”审查法
B．对比审查法
C．重点审查法
D．标准预算审查法
参考答案：A
Leonardo da Vinci(1452-1519)__________ birds kept in cages in order to have the pleasure of setting them free.
A．is said to be buying
B．is said to have bought
C．had said to buy
D．has said to have bought
在焊接缺陷中，对结构危害最大的是（）。
A.气孔
B.裂纹
C.夹渣
D.未焊透
