发电机接线柱根部螺纹损坏可用（）方法修理。
A.外加垫片
B.内加垫片
C.换发动机
D.换导线
参考答案：B
— Who do you think should answer for Li Tianyi’s behavior?
— Actually, I think it is their parents_________.
A．who are blamed
B．that are to blame
C．which are to blame
D．what are blamed
2011年4月，联合国气候变化谈判首轮会议在下列哪个城市举行( )
A．坎昆 B．曼谷 C．伊斯坦布尔 D．吉隆坡
