中型基坑初期排水,排水时间可采用( )。
A.3~5d
B.4~6d
C.5~7d
D.6~8d
参考答案:A
—______ either she or I fit for the job?
—I'm sorry to tell you that neither she nor you ______.[ ]
A. Is; are
B. Are; are
C. Am; is
D. Is; is
熔化极氩弧焊可以采用直流或交流电源。