Pine trees, of which there are almost one hundred ____, are found throughout the
题型：不详难度：来源：
Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.| A．species | B．samples | C．specimens | D．Standards |
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答案
| A |
解析
| 词义辨析。 A. 物种；种类 B. 样品 C. 式样；样本 D. 标准；规格。句意：在北温带发现将近有100种松树。这里是指植物的物种，故选A。 |
举一反三
He asked Mary whether she had passed the exam ________．| A．yesterday | B．the day before | C．the day ago | D．before the day |
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We have to keep with the changing times.| A．step | B．the pace | C．a pace | D．pace |
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It’s known to all that the_____ of life is full of hardships.| A．journey | B．travel | C．tour | D．trip |
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—Mr. Green was born in China.
—It’s no _____ he can speak Chinese so well.
matter B. doubt C. wonder D. problem |
The poem is hard to understand. Can you make ___ of it?| A．idea | B．knowledge | C．sense | D．understanding |
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