为确定 * * 损伤的病理类型,最好的检查方法是
A. * * 镜检查
B. * * 探子检查
C.试插导尿管
D.B超
E. * * 造影
参考答案:E
Please ask them _____ for the meeting next time. [ ]
A. not be late
B. to not be late
C. don't to be late
D. not to be late
招标人和中标人应当自中标通知书发出之日起( )日内订立书面公路工程施工合同。
A.30 B.15 C.7 D.10