适用于急诊患者尿检分析的标本是（）
A.首次晨尿
B.随机尿
C.3小时尿
D.24小时尿
E.餐后2小时尿
参考答案：B
His proposal is so idealistic that there are many difficulties in putting it into practice．
A．familiar
B．relative
C．practical
D．terrible
一般入境货物应在入境前或入境时向检验检疫机构报检；一般出境货物最迟应于报关或装运前7天报检。( )
