【名词&注释】
玉米螟(corn borer)、土壤肥力消耗
[单选题]洋葱的主要食用部分是( )。
A. 鳞茎
B. 鳞叶
C. 叶状茎
D. 小鳞茎
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举一反三：
[单选题]14 . What was Mrs. Franks doing when the accident took place?
A. Walking along Churchill Avenue.
B. Getting ready to cross the road.
C. Standing outside a bank.
[单选题]Why was David able to get the job in the company?
A. He had done well in all his exams.
B. He had written some computer programs.
C. He was good at playing computer games.
D. He had learnt to use computers at school.
[单选题]为田间杂草，是玉米螟的中间寄主，对土壤肥力消耗极大。
A. 黄花蒿
B. 山苦荬
C. 苍耳
D. 苍术
[单选题]The customer comments on the battery are mainly about its _______.
A. quality
B. service
C. function
D. shopping
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