以汽车制造为主的城市是 [ ]
A．长春
B．哈尔滨
C．石家庄
D．洛阳
答案：A
—Thank you for joining in our conversation tonight.—__________ .
A．It’s my duty
B．It’s all right
C．It’ s my pleasure
D．It’s nice to say so
下列溶液一定显碱性的是
