认知行为矫正技术包括（）
A.任务分级法
B.改变消极观点
C.诱发不相容情感
D.基础意象法
参考答案：A, B, C, D
Jim talked for about half an hour yesterday. Never＿＿ him talk so much.
A．I heard
B．did I hear
C．I had heard
D．had I heard
《锅炉大气污染物排放标准》规定了新建( )锅炉房烟囱高度。
A．燃气
B．重油
C．燃轻柴油
D．煤油
