问题
单项选择题
制备O/W型乳剂时，乳化剂的最佳HLB值为
A．16
B．2
C．6
D．8
E．10
答案
参考答案：A
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制备O/W型乳剂时，乳化剂的最佳HLB值为
A．16
B．2
C．6
D．8
E．10
参考答案：A
From the time I was seven, I had a dream of becoming a member of the Students Union. I always 1__ my school leaders for taking responsibility for all of us. So I dreamed of being a leader. Years flew by, and soon I was able to take part in the elections, 2 I would win. But the reality struck that I hadn't had a chance. I wasn't pretty. Girls across the school hardly knew me. I just did not have what it __3 to win a school election. I was 4 ___ . As I cried in my room that evening, I 5 took a deep breath and decided I wouldn't stop dreaming. I decided that I would 6 for elections again in my final year at school—and I would win. I recognized that my 7 had a lot of things in their favor(有利). What were the points that would work in ___8___ favor? I had good grades, and I was friendly and helpful. And my biggest 9 was the faith(信念) I had. I would not allow my plain appearance to hold me __10____ from putting my best foot forward. That evening, I 11 my election plans a whole year ahead of time. I realized that girls would have to get to know me and recognize that I had the ability to 12 them. I loved making friends and I liked being helpful, 13 __ I decided that perhaps I could use these qualities to work to my advantage. In order to learn how to present a great election 14 __ , I also attended a course on effective public speaking. The day after the election, when the principal announced I won the second highest number of votes, the students 15 .That joy on the faces of all my friends showed me that my victory was 16 theirs. Suddenly, I realized that I had 17 much more than I had dreamed of. I had made many new friends and had helped people 18 the way. I had won the 19 and love of my school-mates and they knew me as somebody who would stand by them. I was able to put a smile on their faces and 20 their day.
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