【简答题】完形填空。 Today is Saturday. Tina stays at home _1_ her parents, Mr. King and Mrs. King. They want _2_ to the Haishan Park. The park is near their house, _3_ they walk to the park. It's 9 o'clock now. The...
【简答题】听下面一段材料,回答第1-3题。 1.Who looked after Mr.King on the weekend? A. Mrs.King B. Mr.King’s sister. C. Mrs.King’s sister. 2.What did Mr.King have to do first on Sunday evenings? A. Pick up his wife. B. See h...
【简答题】设计二元理想溶液精馏塔时,若 F 、 X F 、 X D 、 X W 不变,则随原料中 q 的增加, 1. 其最小回流比 下降或减少 。 2. 在相同回流比下,总理论板数 减少 ,精馏段理论板数 减少 。 3. 在相同回流比下,塔顶冷凝器热负荷 不变 ,塔釜热负荷 上升 。(增大、减少、不变、无法确定)