热力消毒灭菌法的原理是A．干扰细菌酶的活性B．破坏细菌膜的结构

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问题单项选择题

热力消毒灭菌法的原理是

A．干扰细菌酶的活性
B．破坏细菌膜的结构
C．抑制细菌代谢和生长
D．使微生物的蛋白质发生光解变性
E．使微生物的蛋白质及酶变性凝固

答案

参考答案：E

判断题

危险货物仅办理整车和20英尺集装箱运输。

填空题

根据句意和所给的首字母提示，补全句子中的单词。

1. If there were more trees on the earth, there would be l____ pollution.

2. I don't like eating lemon. It t____ too sour.

3. The injured people were taken to hospital i____ after the accident.

4. Look, the expression on his face s____ that something bad must have happened to him.

5. According to an ancient Chinese legend, the emperor Shen Nong d____ tea.