If laid out in______straight line,______hu
题型:单项选择题
问题:
If laid out in______straight line,______human digestive tract would measure approximately thirty-foot long.
A.a...the
B./...the
C.the.../
D.the...a
If laid out in______straight line,______human digestive tract would measure approximately thirty-foot long.
A.a...the
B./...the
C.the.../
D.the...a