A:Try as she might
B:As she might try
C:She might as try
D:Might she as try
随着对湿地的保护和治理,我市一些湿地出现了黄嘴白鹭,它优雅的姿态,洁白的羽毛,让人倍感自然之美.黄嘴白鹭有较强的飞行能力,下列特征与飞行无关的是( )
在生物体内含量极少,但对维持生物体正常生命活动必不可少的元素是( )