It seemed that the author didn't know how to open an account while she was at home.
查看答案
People at college are very kind to the author.
A. 对
B. 错
The author didn't work very hard in high school.
A. 对
B. 错
Virginia is not as beautiful as the author's hometown.
A. 对
B. 错
机械设计这一门学科，主要研究_______的工作原理、结构和设计计算方法。
A. 各类机械零件和部件
B. 通用机械零件和部件
C. 专用机械零件和部件
D. 标准化的机械零件和部件
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