左侧卧位可使腹痛减轻提示何种疾病()
A.胰体癌
B.十二指肠淤滞症
C.反流性食管炎
D.胃黏膜脱垂
E.胃溃疡
参考答案:D
下列各组物质加水充分搅拌,各反应物间恰好完全反应,过滤,在滤纸上能留下两种不溶物的是[ ]
A.CuSO4、NaCl、Ba(OH)2
B.FeCl3、KOH、NaNO3
C.CuSO4、Ag、Fe
D.K2CO3、NaOH 、HNO3
汉译英:“离岸价;到岸价”,正确的翻译为:( )
A.free on board; cost and freight
B.insurance and freight; free on board
C.free on board; cost, insurance and freight
D.cost and, freight; insurance and freight