情景教学活动是一类综合性的教学活动。
参考答案：对
—Who ________ for the shooting at a movie theatre in America?
—A gunman named James Eagan Holmes.
A．is blaming
B．has blamed
C．is to blame
D．is to be blamed
拱顶罐罐顶瓜瓣胎具如何制做？
