卧位时腹痛明显,前倾位或俯卧位时减轻,提示的疾病是()
A.十二指肠雍滞症
B.胰体癌
C.反流性食管炎
D.胃黏膜脱垂
E.胃溃疡
参考答案:B
罐顶板焊缝密封性检查是在焊缝上涂以肥皂水,罐内装高度大于()米的水,通入2千帕压力的压缩空气或注水升压,以未发现肥皂泡为合格。
A、4
B、3
C、2
D、1
Last Tuesday a trucker paid $155.76, including 10 percent state and federal taxes, for diesel fuel. What was the price per gallon for the fuel if the taxes are excluded ?() (1)The trucker paid $0.118 per gallon in state and federal taxes on the fuel last Tuesday. (2)The trucker purchased 120 gallons of the fuel last Tuesday.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.