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．