做直腿抬高试验检查时,当患者下肢抬到以下哪个角度以内出现疼痛,即为直腿抬高试验阳性()
A.50°
B.60°
C.70°
D.80°
E.90°
参考答案:C
Fireworks exploded during______ opening ceremony of ________ 2011 Asian Cup Football
Tournament at Khalifa Stadium in Doha, capital of Qatar, Jan. 7, 2011. [ ]
A. the; a
B. the; the
C. a; a
D. a; the
服装计划做x套衣服,已经做了5天,每天做y套,还剩______套.