330MW机组DCS系统共设置了（）、（）、（）、（）方式。
参考答案：手动（基本方式）；汽机跟随；锅炉跟随；协调控制
. --- Did you often e-mail your family during the first year at university?
--- No. I was so busy meeting new people that I didn’t write to my family as I _____.
A．ought to
B．should do
C．should have written
D．should have
急性肾衰竭患者每日所需能量应为每公斤体重（）
A.35kcal
B.70kcal
C.105kcal
D.140kcal
