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

You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.

— ___________________

— 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.

黄金和美元的相关关系为____;黄金与石油的相关关系为____。(  )
By no means ______ destroy or create energy.
Ask Mr. Brown, or any other person ______.
Whether we will go or not __________ the weather.
Which ________ do you prefer, coffee or orange juice?
Tables______ of stones or wood.
Without water, _________ no plants or animals.
煤层气主要以____形式赋存于煤层中?( )
石油二次运移的主要相态为__ _( )
《规程》规定,矿井在采掘过程中,只要发生过_______煤与瓦斯突出,该矿井即定为突出矿井,发生突出的煤层即定为突出煤层。
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.
对于同一品种的石油沥青,牌号越高,________。
煤层被采动后,各种巷道和工作面周围岩体内将发生应力重新分布,其应力集中系数一般可达 ______ 或 ______ 。
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
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