Some canals,such as the Suez of the Panama,save ships weeks of time by making their voyage a thousand miles shorter.Other canals permit boats to reach cities that are not（ ）on the coast,still other canals drain lands where is too much water,help to irrigate fields where there is not enough water,and furnish water power for factories and mills.

单选题

Some canals,such as the Suez of the Panama,save ships weeks of time by making their voyage a thousand miles shorter.Other canals permit boats to reach cities that are not（ ）on the coast,still other canals drain lands where is too much water,help to irrigate fields where there is not enough water,and furnish water power for factories and mills.

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单选题

Some people tend to _________ their failure to external causes such as luck.

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单选题

Try to cover some interesting points about the guest speakers, such as some of their past achievements or credentials.(2.0)

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单选题

Due to frequent changes in, or varying combinations of, some types of equipment such as avionics and instrumentation, ones or more separate documents for these products may be required.

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