妊高征的基本病理变化是
A．高血压B．蛋白尿C．全身小动脉痉挛D．肾小球滤过率降低E．血液黏稠度增加
参考答案：C
Thousands of people after the powerful earthquake happened in Japan on March 11th.
A saved B was saved C were saved D has saved
无向图中一个顶点的度是指图中（）。
A．通过该顶点的简单路径数
B．通过该顶点的回路数
C．与该顶点相邻的顶点数
D．与该顶点连通的顶点数
