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You should _______________ to one or more weekly magazines such as Time or Newsweek.

— ___________________

— Once or twice a week.

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

By no means ______ destroy or create energy.
Ask Mr. Brown, or any other person ______.
Our success _______ whether everyone works hard or not.( )
Whether we will go or not __________ the weather.
Which ________ do you prefer, coffee or orange juice?
关系模型中的关系模式至少是________。
Tables______ of stones or wood.
Without water, _________ no plants or animals.
I am wondering if they are ____ or____.
_________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.
__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.
在列级和表级完整性约束中同时存在的约束分别________、 ________、外码和检查等四种约束。
每个允许有_______个簇索引,___________索引是SQLServer默认选择。
SQLServer的两种授权模式分别为___________和_____________。
关系模式的三类完整性约束条件分别是_____,_____,和______
All people, whether they be rich or poor, strong or weak, privileged or deprived,are interdependent, and _______ the common task of seeking to achieve mankinds full potential
Many boys enjoy _______ football, basketball or baseball
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