A:1010101010
B:11001100
C:11100010
D:10011011
日常生活中,我们看见小朋友利用吸管水平吹出肥皂泡,常常开始时上升,随后便下降,如图所示,请利用你所学的知识解释其中的道理。
--- You're relaxing yourself here?
--- Yes. It feels to walk slowly along the river.