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第1题

3.多层聚乙烯膜的优点（ )(2 分) A.强度高 B.价格高 C.韧性低 D.透光率差
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第2题

Stress is being used in a more general way. lt refers to the syllable that receives lexicastress. () , on the other hand
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第3题

2.在大棚结构中，支撑棚膜、决定大棚的形状和空间的为()(2 分) A.立柱 B.拱杆 C.拉杆 D.压杆
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第4题

The () Pronunciation, or Rp for short, is the instantly recognisable accent oftendescribed as .typically British’ . lt i
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