下列对于工程量清单项目编码说法正确的是()
A.采用十二位阿拉伯数字表示
B.一至九位为统一编码
C.一、二位为附录顺序码
D.三、四位为分部工程顺序码
参考答案:A, B
用电普查机构应对用电普查中查出的问题进行()。
—Why doesn't Jack get his TV set repaired?
—I know _____. He wants to buy a new one .[ ]
A.why he doesn't
B. why doesn't he
C. how doesn't he
D. how he doesn't