食物中蛋白质进入体内后最终的代谢产物是（）
A.核糖核酸
B.尿酸
C.尿素
D.肌酐
E.氨基酸
参考答案：C
动词填空。
1. My daughter wanted ______ (go) to Beijing by air.
2. My son ______ (be) three years old next year.
3.— ______ you ______ (have) your lunch?
—Yes, I ______ (have) it just now.
4.The girls are interested in ______ (dance).
5.Would you please ______ (not turn) on the TV now?
分布于胸腹第二侧线的经脉是
A．足太阴脾经
B．足少阴肾经
C．足阳明胃经
D．足厥阴肝经
E．足少阳胆经
