单项选择题
一般图解法计算时段△t取得越小，结果越精确，因而在图解法中△t尽量取的小。
A、正确
B、错误
一般图解法计算时段△t取得越小，结果越精确，因而在图解法中△t尽量取的小。
A、正确
B、错误
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单项选择题
If the rotation for this vessel is Felixstowe, Antwerp, Le Havre, Hamburg and Rotterdam. The container for Rotterdam is right at the ( ) of the heap.
If the rotation for this vessel is Felixstowe, Antwerp, Le Havre, Hamburg and Rotterdam. The container for Rotterdam is right at the ( ) of the heap.
A． A.uppermost
B． B.middle
C． C.bottom
D．D.aftermost