问题
单项选择题 A1/A2型题
构成机体重量的主要成分是()
A.骨骼
B.肌肉
C.内脏
D.体液
E.细胞
答案
参考答案:D
解析:正常成年人体液总量占体重的60%~70%,小儿更多,所以机体重量的主要成分是体液,故选D。
构成机体重量的主要成分是()
A.骨骼
B.肌肉
C.内脏
D.体液
E.细胞
参考答案:D
解析:正常成年人体液总量占体重的60%~70%,小儿更多,所以机体重量的主要成分是体液,故选D。
His mother __________________________his success in the mid-term exam. He always __________________more ______________others but less of himself. Last year his dad ___________________a falling tree while riding, leaving him as an orphan. Thank God! The hard work is _______________________. |