第15题: [单项选择]Medical care reform has become this country's most important public health ______. A. question B. stuff C. matter D. issue 参考答案:C 答案解析:本题为词义辨析题。question意为“问题”;stuff意为“原料,材料”;matter意为“要紧的事,事件”;issue意为“引起争论的问题”。本句大意为:医疗保健改革已成为这个国家的头等重要的公
第20题: [填空题]Students can find reports on any virtual topic in the ______. 参考答案:on line term-paper mills 答案解析:参见第2个小标题Digital Deception下的第1段的第2行:Students flock to online term-paper mills that sell reports on vi