餐厅、酒吧室内环境的设计，与装潢必须遵循（）原则。
A、豪华性
B、经济性
C、情趣性
D、实用性
参考答案：B, C, D
He has a habit of keeping his arms _____ when talking to others, which I personally think _____ impolite
to his audience. [ ]
A. to be folded; it
B. being folded; X
C. folded; it
D. folded; X
间质性肾炎后期尿量的变化是（）
A.不定
B.不变
C.增多
D.减少
E.无尿
talking to others, which I personally think _____ impolite