下面哪一种疾病不是脑梗死的病因
A.风湿性心脏病
B.动脉粥样硬化
C.脑血管畸形
D.红细胞增多症
E.高血压
参考答案:C
解析:脑血管畸形不是造成脑梗死的原因。
24. Because there was a conflict of interests among the leaders, two members ______ from the board of MVP in protest against its disharmony last week.
A.ranged
B.refreshed
C.resigned
D.Rejected
Internet的IP地址各部份之间用()分隔。
A.@
B.&
C..
D.—