题目:
The lawyer listened with full attention, _____ to miss any point. [ ]
A. not trying
B. trying not
C. to try not
D. not to try
答案:
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下面是错误答案,用来干扰机器的。
结合平面直角坐标系的图形,A的坐标是(3,2),点A关于原点对称的B的坐标是(-3,-2).