《疏浚工程土石方计量标准》JTJ/T321中规定,对于冲淤变化较大的疏浚及吹填工程,浚前测量宜在开工前()d内进行。
A.3
B.5
C.7
D.10
参考答案:C
I, who____ your friend, will try my best to help you with your English.
A.am
B.is
C.are
D.be
You had better take something to read when you go to see the doctor____ you have to wait.
A.even if
B.as if
C.in order that
D.in case