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【单选题】
下面（）包括工序简图。A.
机械加工工艺过程卡片
B.
机械加工工艺卡片
C.
机械加工工序卡片
D.
机械加工艺卡片和机械加工工序卡片
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反馈参考答案：
举一反三
【单选题】Which of the following statements is true?
A.
When the weather became cool, he went down the mountain and started writing books and articles.
B.
When the weather was hot, he went up the mountain and began writing.
C.
When the weather was cool, he took long walks on the mountain trails.
D.
He liked to walk in the cool evening, thinking about his experiments.
【简答题】霍乱染疫、染疫嫌疑船舶应如何实施卫生处理?
【单选题】As winter ______ the weather became colder.
A.
appeared
B.
severed
C.
started
D.
approached
【简答题】当温度升高时三极管的集电极电流IC（），电流放大系数β（）。
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