乙酰乙酸乙酯制备实验中,用乙酸中和过程开始析出的少量固体是()。
What does “gives me a sense of responsibility” in the first sentence of Paragraph 2 mean?
A. I shall be responsible for my teacher.
B. I shall be responsible for my parents.
C. I shall be responsible for myself.
D. I shall be responsible for my school.
From Paragraph 3 we know that _____
A. the writer came to Marymount University alone
B. the writer liked his/her dorm very much
C. the writer knew Marymount University quite well
D. the writer was a student from Virginia
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