2. 外语
  3. In the figure above, if x, y, and z are integers such that x

In the figure above, if x, y, and z are integers such that x

admin2009-05-19  20
问题
In the figure above, if x, y, and z are integers such that x
选项 A、59 and 91
B、59 and 135
C、91 and 178
D、120 and 135
E、120 and 178
答案C
解析 若x，y和z都是整数，且满足x解：本题的正确答案是(C)。由三角形的内角和等于180o可得：x+z=180o-y，而x
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