盐酸赛庚啶具有三环结构，但三环中没有杂原子的H1受体拮抗剂
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盐酸普鲁卡因属于对氨基苯甲酸类局麻药
A. 对
B. 错
西咪替丁结构中含有咪唑环，侧链含有胍基
A. 对
B. 错
Question 5
A. Keeping resolutions is hard work.
B. Making resolutions is easier than keeping them.
C. New Year's resolutions are promises of doing good things in hte new year.
D. If you make New Year's resoltutions on New Year's Day, your resolutions will be realized.
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