单项选择题
I’d like to know something about the cargo condition at the loading port（）detail.
A.at B.by C.in D.on
单项选择题 I have been instructed that on my voyage（），I shall call at Maderra to pick up some cargo.
单项选择题 I am ready（）tow line.
单项选择题 How should the letter O be pronounced when spoken on the radiotelephone?（）
