Multiple choice questions (each question has one or more correct answers, with 5 points for each question) 1. When the tableware is boiled, steam disinfection should be: () a. Keep it at 100 degrees 100 minutes or more. B keep it at 100 degrees for more than 5 minutes. C. keep it at 85 degrees for more than 30 minutes. D. none of the above is correct. It should be stored in. Above 60℃ and below 0℃, above 60℃ or below 10℃, above d. 70℃ or below 0℃, and above e.is not 3. Which of the following installation methods of ultraviolet disinfection lamp is correct () A, any method can be used B, hanging C 2 meters from the ground, hanging against the wall and hanging 4 meters from the table. Which of the following personnel is not allowed to engage in direct contact?