“You must find such long hours very tiring.” “______. I enjoyed it.”

A．After all

B．Never mind

C．Not in the least

D．That‘s all right

对RPI卡环近中支托与舌杆相连的小连接体的要求，错误的是

A．位于舌外展隙内，不影响舌运动

B．位于倒凹区

C．不压迫龈缘

D．与舌杆成锐角

E．外形呈锥形