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【多选题】
在where子句中,定义了查询条件。只有符合条件的数据行才会向结果集中提供数据。在where子句的表达式中,常用的运算符有( )A.
关系运算符
B.
逻辑运算符
C.
范围运算符
D.
模式匹配运算符
E.
空值判断符
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【简答题】Do you think it is helpful for you to understand an English paragraph by distiguishing facts and opinions when doing English reading? Give me the reason:
【判断题】When expressing opinions in a meeting, we just need to state opinions and then give evidence.
A.
正确
B.
错误
【判断题】James collected primary data when he distributed a survey to dorm residents to discover their attitudes and opinions on campus life.
A.
正确
B.
错误
【简答题】6502电气集中的选岔网路采用( )。
【单选题】When a persons sense of well-being is not satisfied, __________
A.
the feeling of alienation will dominate his or her heart
B.
the individual has to confine the emotional needs
C.
the individual is likely to revenge on the society
D.
an effort of developing the sense will be made
【简答题】质量传输可以分为 和 两种基本方式。
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