问题
选择题
His parents ________ his money, so he is in trouble now.
A．cut off
B．cut through
C．gave up
D．brought down
答案
答案：A
考查短语辨析。cut off 切断，cut through 刺穿，gave up 放弃，brought down降低，句意：他的父母中断了他的金钱，因此他现在处于困境中。所以选A。
2Z反应影响的示意图。图中横坐标表示温度，纵坐标表示平衡混合气体中