After you enter the Ohio River at Cairo，the Map shows that the deepest water under the Illinois Central RR Bridge would be found under which span? （）<br>A:Right Descending Bank span<br>B:Left Descending Bank span<br>C:Center span<br>D:Water is equal under all spans

After you enter the Ohio River at Cairo，the Map shows that the deepest water under the Illinois Central RR Bridge would be found under which span? （）
A:Right Descending Bank span
B:Left Descending Bank span
C:Center span
D:Water is equal under all spans

出自：海船船员证

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