腔隙性梗死是指发生在大脑半球深部白质及脑干的缺血性微梗死，因脑组织缺血、坏死、液化并由吞噬细胞移走而形成腔隙。
参考答案：对
-What do you think of the new mayor?
-Great! Seldom ________ so much support. [ ]
A. a man wins
B. wins a man
C. does a man win
D. a man does win
下列单位换算中正确的是 [ ]
A. 5.1Km=5.1Km×1000m=5100m
B. 5.1Km=5.1Km×1000=5100cm
C. 5.1Km=5.1×1000=5100m
D. 5.1Km=5.1×1000m=5100m
