石油中含()愈高,则凝固点愈高。
参考答案:蜡量
营业税采用的税率是()。
A.累进税率
B.定额税率
C.比例税率
D.平均税率
What information will a distress alert contain?()
A.nature of distress
B.type of assistance required
C.course and speed and time at which the information was recorded
D.A, B, C are all right