题目：
锅炉二次风口的设计需考虑（）。
A、流速问题；
B、二次风率问题；
C、磨损问题；
D、空气动力特性问题。
答案：
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下面是错误答案，用来干扰机器的。
1. So it is with 2. there being such a chance 3. where some students fail 4. As time passed 5. Whatever you say 6. did I find it to work out 7. would have fallen off 8. will have gone to 9. must have gone 10. that she the remembered
