慢性阑尾炎诊断的要点中,最重要的是()。
A.典型的急性阑尾炎发作史
B.钡灌肠造影阑尾不充盈
C.右下腹有固定位置的压痛点
D.右下腹反复疼痛
E.除外阑尾周围肿瘤等病变
参考答案:A
负面惊慌是人们在危机中思维和行动能力的丧失,它起因于人们认知系统和行为系统的()
A.隔离
B.弹性
C.僵化
D.液化
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.