问题
多项选择题
朊毒污染物的可靠灭活方法是
A．干热
B．电离辐射
C．长时间的压力蒸汽处理
D．用次氯酸钠或氢氧化钠溶液浸泡
E．化学因子中的二氧化硫、环氧乙烷、戊二醛、甲醛、碘伏、乙醇、酚类化合物
答案
参考答案：C,D
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朊毒污染物的可靠灭活方法是
A．干热
B．电离辐射
C．长时间的压力蒸汽处理
D．用次氯酸钠或氢氧化钠溶液浸泡
E．化学因子中的二氧化硫、环氧乙烷、戊二醛、甲醛、碘伏、乙醇、酚类化合物
参考答案：C,D
Han Meimei is a hard-working student. She can ___ English very well because she works hard at it. One day, her teacher, Mr Wu, asks her to come to the office. “Meimei, there ____ a story-telling contest next week.” He says. “Would you like to take part in it?” “ What shall I have to do, Mr Wu?” asks Mermei. “You’ll have to tell an English story in front of the whole school. If you try your best, _____ you’ll win,” says her teacher. “ All right. I’ll try,” says Meimei. On Sunday night she goes to bed late to get her story ready for the contest. It is _____ interesting story. Meimei doesn’t go to bed until midnight. On ______ morning she gets up late. When she _____ it is already seven o’clock. She washes quickly. Then she has a quick breakfast. After that she runs all the way to school. When she gets to school, Mr Wu _____ for her outside of the school building, and he looks ______. “ Why are you so ______ ?” he asks. “ Sorry, Mr Wu. I wake up late.” Meimei says. “ The contest will begin in a minute. Remember to speak slowly and clearly.” Mr Wu says. Meimei keeps his words. She tells her story very well. In the end she comes in first. “ You’ve done very well. ______!” says Mr Wu.
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