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【单选题】
关于触发器,叙述正确的是:( )。A.
触发器是自动执行的,可以在一定条件下触发
B.
触发器不可以与同步数据库的相关表进行级联更改
C.
SQL Server 2014不支持DDL触发器
D.
触发器不属于存储过程
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皮皮学刷刷变学霸
举一反三
【单选题】'People from the ancient world sailed around Africa. They even reached America.' In your opinion, how would the writer of the passage feel about these ideas?
A.
He has used this as an important fact to praise ancient civilization.
B.
He does not believe them.
C.
In his opinion, ancient explorers did not have the skills necessary for long journeys.
D.
In his opinion, they are possible.
【单选题】The explorers sailed on the ocean for two weeks and ________ found the mysterious land.
A.
generally
B.
eventually
C.
extremely
D.
gradually
【判断题】Early explorers sailed aimless on the sea and discovered new lands by luck.
A.
正确
B.
错误
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