扫描二维码，直接登录
题库 / GMATAdvanced-SC-6
Indoor air pollution can threaten the health of closely confined farm animals and the workers who tend them and perhaps as well impairs the quality of such farm products like eggs, poultry, and pork.
perhaps as well impairs the quality of such farm products like
perhaps as well impairs the quality of such farm products as
perhaps also impairs the quality of such farm products like
may also impair the quality of such farm products like
may also impair the quality of such farm products as
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
can 和 may 平行
登录 或 注册 后可以参加讨论