隋朝大运河的中心在：
A．涿郡
B．洛阳
C．扬州
D．余杭
答案：B
本题考查的是隋朝大运河。隋朝大运河的中心在洛阳，故选B。
--- I don’t know ________ for the party.
--- You look so good now. I think the pink T-shirt _______ the grey jeans very _______.
A．what to wear; matches; well
B．how to wear it; matches; good
C．what to wear; matches; much
D．how to wear; match; well
二级以上医院应当根据实际需要，建立符合实验室生物安全要求的（）。
