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问题
单项选择题
()是指换热过程中蒸发器出口烟气与被加热的饱和水汽之间的最小温差。
A、冷端温差
B、节点温差
C、热端温差
D、接近点温差
答案
参考答案:
B
选择题
— Guess what, we've got our visas for a short-term visit to the UK this summer.
— How nice! You _____ a different culture then.
A. will be experiencing
B. have experienced
C. have been experiencing
D. will have experienced
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问答题
儿童脊膜膨出术后并发症有哪些?
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