幽门梗阻呕吐的特点是
A．餐后即刻呕吐B．呕吐物有宿食味C．呕吐物含多量胆汁D．晨起呕吐E．喷射状呕吐
参考答案：B
下列对招标工程项目的标底作用说法有误是( )。
A．作为衡量投标单位标价的标准
B．作为招标方最高工程价的标准
C．给上级主管部门提供核实建设规模的依据
D．是评标的重要尺度
It is __________ that everyone in the country likes to play it.
A．so an interesting game
B．so a interesting game
C．such interesting a game
D．such an interesting game
