结节病活动期的临床表现特点有()
A.重要器官受累
B.临床表现明显
C.血液生化指标异常
D.病情进展较快
E.起病急
参考答案:A, B, C, D, E
Mr. Smith wanted to buy the house and he told me that ____the house cost,it would be worth it.
[ ]
A. however
B. how much
C. whatever
D. what
试述便利店的分类?相应的标准是什么?