A:Told
B:Having been told
C:He was told
D:Though he had been told
如图是人体心脏结构的示意图,据图回答下列问题
容器
温度/K
物质的起始浓度(mol/L)
物质的平衡浓度(mol/L)
CO2(g)
H2(g)
C2H5OH(g)
H2O(g)
甲
500
0.20
0.60
0
0.083
乙
0.40
1.20
丙
600
0.10
0.30
0.039
4x•(﹣2xy2)= ____;分解因式:xy2﹣4x= ____.
—____ does your father work?
—He works in a hospital.