X线钡餐检查不能诊断()
A.胃窦胃炎
B.胃溃疡
C.胃体胃炎
D.胃癌
E.十二指肠球后溃疡
参考答案:C
10. When I go out in the evening I use the bike ________ the car if I can.
A.rather than
B.regardless of
C.in spite of
D.other than
绘制一M20,螺杆长60mm,螺纹长40mm的螺栓零件图。如下图所示。