________ the moment they heard the starting signal given by the teacher.  [ ]

A. Ran the children down the hill       

B. Down the hill did the children run

C. Down the hill ran the children

D. Down the hill the children ran

反映肺一次通气最大能力的是

A．潮气量

B．补吸气量

C．肺活量

D．时间肺活量

E．功能残气量