口岸检查办法规定，船方应在船舶抵达前向检查机关报告（）。
A.预计到港时间
B.靠泊计划和靠泊地点
C.船员、旅客情况
D.A、B、C都是
参考答案：D
阅读短文，根据首字母提示填空。
Today is Sunday. It is 1. f ____. Li Ming and Danny 2. g____ to skate. Danny is going to
3. t____ Li Ming to skate. But Danny can't skate. He falls down many times. What 4. a ____
Li Ming? He skates very well. He 5. c____ turn around on the ice.
产生风险的原因是人们有目的的活动中存在的不确定性.
