地西泮的化学名为（）。
A．3-羟基-5-苯基-7-氯-1，3-二氢-2H-1，4-苯并二氮杂
-2-酮
B．1-甲基-5-苯基-7-氯-1，3-二氢2H-1，4-苯并二氮杂-2-酮
C．3-羟基-5-苯基-8-氯-1，3-二氢-2H-1，4-苯并二氮杂-2-酮
D．1-甲基-5-苯基-8-氯-1，3-二氢2H-1，4-苯并二氮杂-2-酮
参考答案：B
解析：
[知识点] 苯二氮[*]类镇静催眠药
| 用方框中所给短语的适当形式填空。 | |
2. David is leaving for Wenzhou _____. 3. _____, he has to travel to a country where English is not spoken. 4. Long long ago, many British people _____ to leave their country and brought the English language to other countries. 5. If you want to _____ studying English well, you need to do more listening and reading. |