人体身体组织消耗的能量占基础代谢的()。
A.30%~40%
B.40%~50%
C.50%~60%
D.60%~70%
E.70%~80%
参考答案:E
太阳能电池的基本特性有:()
--- Whose shoes are those?
--- They are shoes.
A. my B. he C. you