2009 Hunan Question 1 Single-choice Differentiating 2009_省自主命题(湖南) 1.(5分)(2009•湖南)$\log_2 \sqrt{2}$的值为( ) A. $-\sqrt{2}$B. $\sqrt{2}$C. $-\dfrac{1}{2}$D. $\dfrac{1}{2}$ Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →