题目内容

抓棉机的作用主要是( )。

A. 混合
B. 除杂
C. 抓取
D. 牵伸

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在清梳联流程中一般使用往复式抓棉机。

A. 对
B. 错

Task 1 Fill in the blanks with the correct relative pronouns.1. The picturehas disappeared is very valuable.2. The manwallet was stolen is very upset.3. That's the manI sold the car to.4. The bookwas lying on the table is mine.5. The poemshe wrote are going to be published.6. Is there a shop near heresells cigarette?7. The manyou bought the house from is my colleague.8. I'm afraid that's allI can do for you.9. The River Thames,flows through London, is more than 200 miles long.10. My sister,you spoke to at the party, wants to study history.

开清棉的原料是( ),半制品是( )。

A. 纤维,棉卷
B. 棉卷,棉条
C. 纤维,棉条

开清棉的任务是( )。

A. 均匀
B. 除杂
C. 开松
D. 混合
E. 并合

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