Few pleasures can equal _____ of a cool drink on a hot day.
A.some
B.any
C.that
D.those
答案:C
试述绞窄性肠梗阻的诊断要点。
5LZ127型螺杆钻具的额定工作扭矩为()。
A、130kN·m
B、1300kN·m
C、130N·m
D、1300N·m