人类嘧啶代谢的主要产物是()
A.β-氨基异丁酸
B.尿囊素
C.次黄嘌呤
D.尿素
E.尿酸
参考答案:A
The project Wang Lin’s life is one of the many government programmes ________improving the situation for the poorest people in China.
A.that saved; aiming at
B.which has saved; aimed at
C.which had saved; aimed at
D.that had saved; aiming at
溢饮的病位在()
A.胸膈
B.头面
C.肠胃
D.胁下
E.肌表