肺痿病最具代表性的症状是（）。
A.咳嗽胸痛
B.咳吐脓血
C.咳吐浊唾涎沫
D.咳吐黄痰
E.口干咽燥
参考答案：C
—Madam， your clothes are ready now.
—Thanks. And how much shall I for them？
A．cost
B．take
C．spend
D．pay
An electronic chart system meeting IMO specifications for complying with chart carrying requirements is an（）.
A.E-Navigation
B.Integrated Bridge system
C.Electronic Chart System
D.Electronic Chart Display and Information System
