与奥运会单纯的观看不同，青奥会应该突出（） A.参与、绿色与活力 B.文化、竞赛与教

— Must I make a choice among the five dictionaries right now?

—  __________, you don't have to decide immediately. [ ]

A. It makes no difference    

B. Just take your time      

C. Look at it slowly        

D. I don't care at all

大学士叶向高言：我朝阁臣，只备论思顾问之职，原非宰相。这里的“我朝”是指（ ）

A、汉朝    B、唐朝    C、元朝   D、明朝

He told us that the moon _____ very far from the earth.      [ ]

A. was

B. are

C. were

D. is

下列哪种药物不是Ⅰ类抗心律失常药物（）

A.普鲁卡因胺

B.利多卡因

C.氟卡尼

D.莫雷西嗪

E.伊布利特

超临界流体具有类似液体的（）和类似气体的（）。