Having proper ventilation throughout the building is _____ for protecting the health and well-being of the workers.

Question 1

C. essential

Answer

C. essential

Question 2

D. alternative

Answer

D. alternative

Question 3

A. cooperative

Answer

A. cooperative

Question 4

B. visible

Answer

B. visible

Câu hỏi: Having proper ventilation throughout the building is _____ for protecting the health and well-being of the workers.