氧化反器塔底PH值降低会造成（）。
A、催化剂料浆呈酸性
B、稀氨水消耗减少
C、催化剂活性降低
D、滤液中铁离子含量增大
参考答案：A, C, D
服用七厘散的药引应选（）
A.黄酒
B.姜汤
C.清茶
D.米汤
E.芦根汤
用be going to结构完成对话。
1. A: Are you ___________ to ___________ maize (玉米) this year?
B: No, I ___________ ___________. I planted maize last year.
A: What ___________ you going ___________ plant?
B: I'm going to ___________ tomatoes.
2. A: Is the elephant ___________ to play football?
B: ___________, it isn't.
A: What's it going to do?
B: It's ___________ to play basketball.
