根据《跟单信用证统一惯例》规定“约”允许有关金额或数量的增减幅度不超过（ ）
A．5％
B．9％
C．10％
D．15％
参考答案：C
—Could you tell me if Li Lei____________ to my party, Linda?
—Sorry, I am not sure. If he ___________, he’ll call you.
A．is coming, will come
B．will come, will come
C．is coming, comes
D．comes, will come
具有清肺化痰止咳平喘之功的药物为：
A．苏子
B．马兜铃
C．瓜蒌
D．旋覆花
E．白果
