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【单选题】
Captain Cook safely ____ his ship without accident for 100 voyages.A.
navigate
B.
navigation
C.
navigator
D.
navigated
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】要在表中删除字段,一般( )
A.
如果存在表间联系的话，先删除此表间联系
B.
如果存在引用的话，先删除其他对象对该字段的引用
C.
如果存在重要数据的话，先保存好该字段的重要数据
D.
全面考虑上述3项
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