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Question 19. Among _______ adults, prolonged exposure to polluted air can weaken their immune system. A. beneficial B. conducive C. suscepti...
Thuộc tài liệu:17. TỪ VỰNG NÂNG CAO CHỦ ĐỀ: HEALTH AND LIFESTYLES
Đề bài
Question 19. Among _______ adults, prolonged exposure to polluted air can weaken their immune system.
A. beneficial
B. conducive
C. susceptible
D. adverse