“千古奇冤，江南一叶；同室操戈，相煎何急？”是周恩来在（）后对国民党蒋介石的控诉和回击。
A、西安事变
B、四一二 * *
C、皖南事变
参考答案：C
Many students don’t know how to ______ stress and become worried.
A．argue with
B．deal with
C．quarrel with
D．come up with
调车信号继电器DXJ受（）线控制。
A.8线
B.11线
C.9线
D.10线
