单项选择题

1. 绕肱骨外科颈的是
A、尺神经
B、腓总神经
C、腋神经
D、桡神经
E、正中神经

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不定项选择

某公司每年耗用的原材料为5000吨，单位存储成本为5000元/吨，每一次的订货成本为20000元，则最佳订货批量为2000吨。（）

A．错误
B．正确

单项选择题

Q: Which of the following statements is true?

A、The number of women professors in the University in 1987 was greater than that of 1985.
B、The number of women professors in the University in 1987 was smaller than that of 1985.
C、The number of women professors was the same as that of 1985.
D、More and more women professors thought that sexual discrimination did exit in the University.