动力转向系中，（）既可限制最大压力，又可限制多余的油液。_爱下问搜题

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问题填空题

动力转向系中，（）既可限制最大压力，又可限制多余的油液。

答案

参考答案：安全阀

判断题

证券经纪商必须忠实地按照委托人所委托的交易种类、证券名称、买入或卖出、买卖数量、限价或市价等条件，在委托有效时间内买卖有价证券，不得以任何方式损害委托人的权益。( )

填空题

用方框中所给单词的适当形式填空，使短文正确、通顺。每词限用一次。

parent, tell, call, celebrate, together, why, start, after, shop, newspaper

    Most people buy lots of presents just before Christmas. But some people think we buy too much. They
start a special day   1   Buy Nothing Day. They don't want anyone to go   2   on that day. Buy Nothing Day
is on November 29. It is   3   Thanksgiving. Often, before Christmas we see many ads. in   4   and on TV
  5   us to "buy, buy, buy!" The idea for Buy Nothing Day   6   in Vancouver, Canada. Now people all over
the world   7   Buy Nothing Day. In California, the U.S.,   8   and children get   9   to read stories, sing songs
and draw pictures. The children talk about  10  they can't get many toys.