【单选题】It's getting dark. Please___the light.
【单选题】作为非营利组织会计的主体,我国的非营利组织是指( )。
【单选题】It's getting dark, _______ they're still working. [ ]
【单选题】______! It's getting dark. [ ]
【单选题】It's getting dark. You'd better the light.
【单选题】 The physical layer of the OSI reference model is not defined ().