长期卧床致心血管系统的并发症
A.压疮
B.深静脉血栓
C.坠积性肺炎
D.高血压
E.眩晕
参考答案:B
Can you tell me what you __________ when the teacher came into the classroom?
A.did
B.do
C.are doing
D.were doing
显示7岁女童身高与体重的关系,宜绘制()
A.散点图
B.条图
C.线图
D.直方图
E.半对数线图