嘌呤碱在体内代谢的终产物是()
A.次黄嘌呤
B.黄嘌呤
C.别嘌呤醇
D.氨,二氧化碳,有机酸
E.尿酸
参考答案:E
---My car has broken down , Would you please sent someone to ____?
----OK , my driver will soon be with you .
A.give me up
B. pick me up
C. cheer me up
D. turn me up
下列有机物的命名正确的是( )
A.
1,6-二甲基-4-乙苯
B.
3-乙基-1-丁烯
C.
2,4-二甲基己烷
D.
2,2,3-三甲基戊烷