38.風管變徑時之擴大應維持進風側幾度以下？(A)＜10°(B)＜15°(C)＜30°(D)＜40°。

問題詳情

38.風管變徑時之擴大應維持進風側幾度以下？
(A)＜10°
(B)＜15°
(C)＜30°
(D)＜40°。

參考答案

答案：B

統計：A:10,B:140,C:43,D:16,E:0

難度：適中

上一篇 : 9. Doctors said that the conventional medicine can only _______ the condition, but it cannot cure th
下一篇 : 10. Ms. Anderson divides the students into small groups and assigns each group a different city as