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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.

By no means ______ destroy or create energy.
Ask Mr. Brown, or any other person ______.
Our success _______ whether everyone works hard or not.( )
逆变电路是一种 ________ 变换电路。
Morning or afternoon. It makes no _______ to me.
Whether we will go or not __________ the weather.
Which ________ do you prefer, coffee or orange juice?
Tables______ of stones or wood.
直流斩波电路是一种______变换电路。
现代网络的通信是一种基于分组交换技术的通信。分组交换技术有两种,即电路交换和_______。
乙类互补对称电路会出现交越失真,它是一种_________失真。
Without water, _________ no plants or animals.
Boost-Buck电路是 ________ 斩波电路。
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.
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