实现肺的换气是通过（ ）
A．气体的扩散作用
B．呼吸运动
C．吸气
D．呼气
答案：A
—John has spoken Japanese well now. —______, and _____.
A．So he has , so you have
B．So he has , so have you
C．So has he, so have you
D．So has he, so you have.
下述语句段在运行时的显示结果是【 】。 Cis x=10．34 + 8 Print Len(x)
