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吸烟有害健康，烟草燃烧释放的烟雾中含有3000多种对人体有害的化学物质。 (1)烟雾中能使人体内血红蛋白中毒的气体是___________(填化学式)； (2)烟雾中含有的甲醛，会与蛋白质发生__________变化(选填“物理”或“化学”)，使蛋白质失去原有的生理功能； (3)尼古丁(C 10 H 14 N 2 )是香烟中的主要有毒物质之一，它由_______种元素组成，所含氢元素与氧元素的质量之比为_________。
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举一反三
【简答题】Read this text and identify what the italicized words refer to. 1. she (Para. 2, Line 4): __________________________ 2. their (Para. 4, Line 2): __________________________ 3. it (Para. 5, Line 1): ___...
【单选题】What does the pronoun "that" (Sent.4, Para.1) most probably refer to ?
A.
tradition
B.
vitality
C.
hypocrisy
D.
ambition
【简答题】Task 7: Please read the text in Task 6 Flexible Responses to Business Challenges and identify what the italicized words refer to. Unit1-Task6_Flexible Responses to Business Challenges.docx 1. she (Par...
【简答题】Identifying the References Read this text and identify what the italicized words refer to. 1. she (Para. 2, Line 4): __________________________ 2. their (Para. 4, Line 2): __________________________ 3...
【简答题】Read Text B and identify what the
italicized words refer to. 1. It ( Para. 1, Line 1 ) ____________________ 2. them ( Para. 3, Line 3 ) ____________________ 3. they ( Para. 4, Line 5 ) ____________...
【单选题】refer to (Para. 4, Line 3): ______ A. to mention or to speak about B. appoint C. represent
A.
B.
C.
C
【简答题】Read this text and identify what the italicized words refer to. 1. she (Para. 2, Line 4): __________________________ 2. their (Para. 4, Line 2): __________________________ 3. it (Para. 5, Line 1): ___...
【简答题】U nit 1 comprehensive reading Read this passage and finish the following exercise After You Read, Please Identifying the References Read this text and identify what the italicized words refer to. 1. ...
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