将1000mL 0.1mol•L﹣1 BaCl2溶液与足量稀硫酸充分反应放出a kJ热量;将1000mL 0.5mol•L﹣1 HCl溶液与足量CH3COONa溶液充分反应放出b kJ热量(不考虑醋酸钠水解);将500mL 1mol•L﹣1 H2SO4溶液与足量(CH3COO)2Ba(可溶性强电解质)溶液反应放出的热量为( )
A:(5a﹣2b)kJ
B:(2b﹣5a)kJ
C:(5a+2b)kJ
D:(10a+4b)kJ
____ ____ her jacket?
What's Tony good at?
Amy has got lots of friends.(改为一般疑问句并做否定回答)
____Amy ____lots of friends? No, ____ ____.