审查设计概算的方法有（）
A.全面审查法
B.重点审查法
C.经验审查法
D.分解对比审查法
E.综合审查法
参考答案：A, B, C, D
When I got on the bus, I ________ I had left my wallet at home.[ ]
A. was realizing
B. realized
C. have realized
D. would realize
一场大火往往由一个小小的烟头引起。烟头在火灾发生中所起的作用是[ ]
A．提供可燃物
B．使可燃物的温度达到着火点
C．提供氧气
D．降低可燃物的着火点
