绝对值小于3.1的整数有多少个. [ ]
A.5
B.6
C.7
D.8
答案:C
惊厥前伴剧烈头痛,可见于()
A.癫痫大发作
B.蛛网膜下腔出血
C.重度失水
D.脑出血
E.脑梗死
They are determined to work out the task,____difficult it is.
A.however
B.no matter what
C.no matter what
D.whatever