2. 职称英语
  3. Many people are ______airborne pollutants such as pollen. ______, scientific res

Many people are ______airborne pollutants such as pollen. ______, scientific res

游客2023-10-15  40
问题 Many people are ______airborne pollutants such as pollen. ______, scientific research has found out that pollen is nutritious for human beings.
选项 A、allergic to: However
B、indispensable to: On the contrary
C、immune to: However
D、vulnerable to: On the contrary
答案 A
解析 句意：许多人对空气传播的污染物过敏，比如说花粉。然而，科学研究发现花粉实际上是很有营养的。be allergic to对……过敏。be indispensable to对……必不可少。be immune to对……有免疫力，可避免……。be vulnerable to易受……的伤害。onthe contrary相反，正相反。
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