在方程2x+5y=1中,用含x的代数式表示y为( )。
I have ______ money than you, but I have ______ friends.
A.a little, a few
B.a few, more
C.less, more
D.less, much
男性,41岁,右下肢大隐静脉曲张伴小腿慢性溃疡,拟手术治疗,术前几日用70%乙醇擦拭周围皮肤
A.10dB.6~7dC.4~5dD.2~3dE.1d