A head-on situation at night is one in which you see（）.
A. one sidelight of a vessel ahead of you
B. one sidelight and a masthead light of a vessel ahead of you
C. one sidelight，a masthead light，and a range light of a vessel ahead of you
D. both sidelights of a vessel dead ahead of you
查看答案
剞刀的原料要能突出刀纹的表现力。
A. 正确
B. 错误
下列各科目的余额，期末应结转到“本年利润”科目的有（）。
A. 营业外收入
B. 营业外支出
C. 投资收益
D. 预提费用
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