我国对医疗器械产品实行什么样的管理？
参考答案：
第一类医疗器械实行产品备案管理，第二类、第三类医疗器械实行产品注册管理。
混转又称散转，是指纳税人同时采用前传和后传的一种税负转嫁形式。()
It must guide public opinion, after presenting ______ both sides of every issue and pointing out to readers what measures seem to promise the greater good for the greater number.
A. inquisitively B. inconceivably C. appallingly D. impartially
