问题
单项选择题
电刷镀中采用快速镍和高速铜不能超过（）mm的安全厚度。
A.0.10～0.20
B.0.20～0.25
C.0.25～0.30
D.0.30～0.50
答案
参考答案：D
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电刷镀中采用快速镍和高速铜不能超过（）mm的安全厚度。
A.0.10～0.20
B.0.20～0.25
C.0.25～0.30
D.0.30～0.50
参考答案：D
About the Conference The Athletic Business Conference & Expo is a premier educational event for athletic, fitness and recreation professionals. Through thought-provoking（发人深省的） seminars（研究会）, outstanding keynotes, a various trade show and great networking, attendees get the latest information on building, managing, operating and marketing sports, recreation and fitness facilities and programs. The 2007 conference and trade show will take place at the Orange County Convention Center, Nov. 29~DeC．1 in Orlando. Conference Seminars and Workshops Wednesday, Nov. 28, through Saturday, Dec. 1．Workshops will be held on Wednesday, Nov. 28, while seminars will be held Nov. 29~Dec.1．A complete seminar schedule will be available in July. Golf Classic, Tours The ABC Golf Classic and tours of area sports and recreation facilities will be held on Wednesday, Nov. 28. Exhibit Hall Hours
Thursday, Nov.29．Location to be announced. Cost * Workshops, tours, CEUs and the Golf Classic have an additional cost. * $ 395 first person. * $ 340 per person for 2nd and 3rd person from the same organization.  * Multi-attendee discount: $ 160 per person for each additional person（4th and beyond） from the same organization. Note: To receive multi-attendee discount, all attendees from the same organization must register at the same time and pay with one check or credit card. Workshops, tours, CEUS and the Golf Classic have an additional cost. 小题1:The above advertisement most probably appears in ______.
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