用于系固非标准货的固定式系固设备种类主要有()
Ⅰ.眼板;Ⅱ.眼环;Ⅲ.地令;Ⅳ.燕尾座。
A.Ⅰ,Ⅱ,Ⅲ
B.Ⅱ,Ⅲ,Ⅳ
C.Ⅰ,Ⅱ,Ⅳ
D.Ⅰ,Ⅱ,Ⅲ,Ⅳ
参考答案:A
肠结核最好发的部位是()
A.直肠、乙状结肠
B.降结肠
C.横结肠
D.升结肠
E.回盲部
I had hoped to see her off at the station, but I _____ too busy.
A.was
B.had been
C.would be
D.would have been