题目:
A ketch is a sailing vessel with().
A.one mast
B.two masts: with the mizzen stepped abaft the rudder post
C.two masts: with the mizzen stepped forward of the rudder post
D.two masts: a foremast and a mainmast
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C