Why did Martin Eden begin to read heavily？
A. Because he needed to learn how to sow on the fallow land.
Because he meant to test if his eyes were very strong.
C. Because he was concerned about some abstract thoughts.
D. Because he had strong desire to learn some knowledge.
关于热压灭菌法灭菌可靠性的控制指标是
A. D值
B. F0值
C. F值
D. Z值
E. N1值
For Martin Eden, "an irretrievable blunder" refers to
A. reading books for a week.
B. assailing other people.
C. losing determination.
D. calling Ruth Morse.
对于聚氧乙烯型非离子表面活性剂，当温度上升到一定程度时，聚氧乙烯链可发生强烈脱水和收缩，使增溶空间减少，增溶能力下降，表面活性剂溶解度急剧下降，溶液出现混浊，此时所达到的温度称为
A. 昙点
B. Krafft点
C. 熔点
D. HLB
E. 起昙
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