2. 自考
  3. As a defense against air-pollution damage, many plants and animals ______ a substance to absorb harmful chemicals.

As a defense against air-pollution damage, many plants and animals ______ a substance to absorb harmful chemicals.

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问题 As a defense against air-pollution damage, many plants and animals ______ a substance to absorb harmful chemicals.
选项 A、relieve
B、release
C、dismiss
D、discard
答案B
解析
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