急性糜烂性胃炎的确诊有赖于
A．呕血与黑便B．急诊钡餐检查C．急诊胃镜D．病史与体征E．急诊血管造影
参考答案：C
交际
It will be appreciated ______ you could effect shipment in two lots by direct steamer ______ you receive our L/C.( )
A．will, soon
B．if, as soon as
C．when, when
D． when, which
