27. In the west-central region lived the Welsh, who spoke a Celtic language, and in the north lived the Scots, whose language, ______ not the same as Welsh, was also Celtic.

A．though

B．unless

C．if

D．as if

面部表情中，对表达忧伤最重要的是( )

A．眼
B．口
C．鼻
D．前额