当公路收费站点的计重收费衡器因不能准确计量出现纠纷时，应向（）提出申诉。
A、该衡器生产厂家
B、公路管理部门
C、质量技术监督部门
参考答案：C
I sent ______ e-mail to Amy to say thanks for her help with my study.
A．a
B．/
C．an
D．the
Yesterday my sister had her computer _______ at the supermarket. [ ]
A. mend
B. to mend
C. mended
D. mending
