脱硫设备防腐材料只有耐瞬时高温和易于传热的材料效果最好。
参考答案：对
I _____ Ping –pong quite well, but I haven’t had time to play since the new year.
A．played
B．will play
C．have played
D．play
土地供应政策的核心是合理确定地价。( )
