- 搜標題
- 搜題干
- 搜選項
單項選擇題
組成石油的元素H含量為（）。
A.5%~8%
B.8%~11%
C.11%~14%
D.14%~17%
A.5%~8%
B.8%~11%
C.11%~14%
D.14%~17%
