下列不属于成本加酬金合同的是（）。
A.成本加固定百分比酬金
B.成本加固定金额酬金
C.最高限额成本加可变酬金
D.成本加奖罚
参考答案：C
You hear on the radiotelephone the word “Securite” spoken three times. This indicates that（）.
A.a message about the safety of navigation will follow
B.a message of an urgent nature about the safety of a ship will follow
C.the sender is in distress and requests immediate assistance
D.you should secure your radiotelephone
行政机关不得公开涉及（）。
