--- I don’t think teenagers should drive cars.

--- _______. They aren’t serious enough.

A．I agree

B．I don’t agree

C．I think

D．I don’t think

腰_4～5椎间盘突出的神经麻木区是在（）

A．小腿前内侧

B．小腿前外侧

C．小腿后内侧

D．小腿后外侧

E．小腿正前侧