1. You are exposed to obtrusive ads that ______ seemingly from nowhere even when you are disconnected from the Net, and your personal information gathered and sent off without you being aware of it. A. size up B. dwindle away C. conjure up D. pop up
2. The statistical figures in that report are not ________. You should not refer to them. A. accurate B. fixed C. delicate D. rigid
【长难句翻译】 Since the assessment of intelligence is a comparative matter we must be sure that the scale with which we are comparing our subjects provides a “valid” or “fair” comparison.