协助使用手杖老人入厕应（）。
参考答案：嘱老人先将手杖往前移动20cm后再移动健侧下肢
The effect that 20 years ago the car accident ____ on him ___ being fully realized now. [ ]
A. have; are
B. had; are
C. had; is
D. have ;is
下列哪些疾病在荧光造影检查表现荧光渗漏的有()
A．先天性视网膜动静脉畸形
B．湿性年龄相关性黄斑变性
C．糖尿病性视网膜病变
D．中心性渗出性脉络膜视网膜病变
E．视网膜海绵状血管瘤
