题目内容

Complete the following sentences with the words or phrases given below. Change the form if necessary.relevant typical in terms offuel achieveacquirefeature excel tend to stay away from1. This painting is fairly __________ of his early work.2. __________quality ingredients, this is the best ice cream you can buy.3.The business was __________ from Owen four years ago.4.Summers in the north__________ be cooler and drier than in the south.5.Once we have the__________ information,we can make a decision.6.Swimmers have been told to___________the beach following a shark attack last week.7.Students with good communication skills will have a better chance to__________ at work.8. The software division expects to __________ its sales targets this year.9.Each room in this building has its own special__________ .10.The area's rich natural resources have long________ the Russian economy.

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缓冲溶液是一种能够消除外来酸碱影响的溶液

A. 对
B. 错

强酸强碱的浓度很大时,它也能抗少量的酸或碱,所以也具有缓冲作用

A. 对
B. 错

喝碱性水可以改变酸性体质

A. 对
B. 错

缓冲溶液的缓冲能力是

A. 没有限度的
B. 有一定限度的
C. 微不足道的
D. 和浓度无关的

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