建筑工程质量应符合本标准和()的规定。
A.相关专业验收规范
B.相关管理规范
C.相关管理制度
D.技术标准
参考答案:A
Although they had made careful preparation, unexpected difficulties________in the course of their
experiments.[ ]
A.rose
B.raised
C.lifted
D.arose
一路4CIF模拟电视信号数字化后的码流速度约是()Mbit/s
A.10
B.140
C.500
D.1000