A. U形 B. X形 C. 箱形
A. I miss you. B. Fine. Thank you. And you? C. Are you OK? D. This way, please.
A. 院长 B. 分管教学副院长 C. 辅导员 D. 副院长
A. 0mm B. 1mm C. 2~5mm D. 9~12mm
A. 正确 B. 错误