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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.

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

与节流阀相比较,调速阀的显著特点是( )
Whether we will go or not __________ the weather.
Which ________ do you prefer, coffee or orange juice?
无线网络是计算机网络与哪项技术相结合的产物__________。
Tables______ of stones or wood.
计算机网络是计算机技术与_____相结合的产物。
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.
调速阀可使速度稳定,是因为其节流阀前后的压力差 ____ 。
溢流阀安装在液压系统的液压泵出口处,其作用是维持系统压力____,液压系统过载时____。
节流阀在定量泵的液压系统中与溢流阀组合,组成节流调速回路,即____ 、____、____ 三种形式节流调速回路。
与节流阀相比较,调速阀的显著特点是____。
根据改变流量方式的不同,液压系统的调速方法可以分为三种:____、容积调速、____。
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
小麦种子的胚与双子叶植物种子的胚相比较, 它具有如下特点:胚根具有(____); 胚芽具有(____); 胚轴的一侧为子叶, 有
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