持续性房颤的特点()。
A.持续时间>24/小时
B.不能自行终止
C.需应用药物或电复律转复
D.可自行终止
E.不能恢复窦性心律
参考答案:A, B, C
下列生物中不属于真菌的是 ( )
A.银耳
B.银杏
C.木耳
D.霉菌
Most people usually have less money at the end of the month than ____at the beginning.
A.which is
B.which was
C.they have
D.it is