观察蜗牛时,在蜗牛前方3 cm处,放上蘸有酒精的棉花,发现蜗牛会向远离棉花的方向爬行,这说明蜗牛具有 ( ) A . 视觉 B . 味觉 C . 触觉 D . 嗅觉 答案:D23.( 2013 江苏南京,9) — weather it is!We can’t go boating on the Xuanwu Lake.—Don’t worry.Let’s go to the Science Museum instead. A. What good B. How good C. How bad D. What bad