PAD患者最常见的症状是什么？
A. 静息痛
B. 跛行
C. 组织缺损(组织溃疡或坏疽)
D. 伤口愈合不良
A in style
B in their emotive or evaluative meaning
C in their collocation
D slightly in what they mean
A photo–copy
B cackle
C book
D rumble
A NP–movement/WH-movement
B NP–movement/Aux-movement
C AUX-movement/WH–movement
D WH–movement/AUX-movement
微信支付 
支付宝支付