下列java组件中,不属于容器的是( )。
A.Panel
B.Window
C.Frame
D.Label
参考答案:D
All the students arrived at the school on time yesterday, _____ it rained heavily.[ ]
A. though
B. but
C. because
D. so
截瘫患者常见并发症包括()
A.压疮
B.坠积性肺炎
C.泌尿系感染
D.心力衰竭
E.足下垂