(单选题)20: The fact that a theory is ___does not necessarily___its scientific truth,which must be established by unbiased controlled studies. A: plausible,ensure B: popular,limit C: venerable,override D: conhensive,undermine ...
(单选题)14: optics A: happy B: science of light ...
(单选题)8: Everything depends on ___ they will support you about it. A: which B: if C: whether D: that ...
(单选题)2: mania A: crazy B: man-made ...
(单选题)16: the aim is to ___economic competitiveness. A: raising B: raise ...
(单选题)10: boycott A: refuse to buy B: youth ...
(单选题)4: in the absence of A: without B: unnecessary ...
(单选题)18: motivated A: excited B: keen ...
(单选题)12: lay A: professional B: unprofessional ...
(单选题)20: unjustified A: unjust B: without a good reason provided ...