体内能量的产生、转移和消耗称为（）.
A.能量代谢
B.基础代谢
C.安静代谢
D.机能代谢
参考答案：A
.Many people have got the habit of buying flowers for their mothers on _______. [ ]
A. Mothers' Day
B. the Mothers' s Day
C. the Mother's Day
D. Mother's Day
柴油的粘度是指柴油的流动能力，柴油的粘度越低，柴油越（）
