我国规定，教室桌面的平均照度不低于（）。_学校卫生概述_全学科试题题库

当前学科：学校卫生概述

题目：单选
我国规定，教室桌面的平均照度不低于（）。
答案： <查看本题扣1积分>

查看答案

答案不对？请尝试站内搜索

推荐知识点:

以下试验项目属于破坏性试验的是（）。

安装COREL GRAPHICS SUITE后，在CorelDraw中双击一幅位图，结果是（）

做静平衡试验的平行导轨支承面最小长度应大于转轴轴颈的（）倍。

钢中的氢是白点产生的根本原因，降低钢的断面收缩率。

神经内分泌组织是指（）

未经许可，擅自经营按照国家规定需要许可的行业的，应当依法给予治安管理处罚。

前轮为独立悬架的汽车，转向梯形机构的横拉杆应采用（）结构。

80瓶式杀青机的投叶量以（）公斤为最好。

True Friendship Young adult filmmakers all hope to show their works in international festivals like Sundance and Toronto. But what about really young filmmakers who aren't in film school yet and aren't， strictly speaking， even adults？ They are at the heart of Wingspan Arts Kids Film Festival， tomorrow， in a setting any director might envy： Lincoln Center. Complete with "red carpet" interviews and various awards， the festival has much in common with events for more experienced moviemakers， except for the age of the participants： about 8 to 18. "What's really exciting is that it's film for kids by kids，" said Cori Gardner， managing director of Wingspan Arts， a nonprofit organization offering youth programs in the New York area. This year the festival will include films not only from Wingspan but also from other city organizations and one from a middle school in Arlington， Virginia."We want to make this a national event."Ms. Gardner added. The nine shorts to be shown range from a Claymation biography of B. B. King to a science fiction adventure set in the year 3005. "A lot of the material is really mature，" Ms. Gardner said， talking about films by the New York City branch of Global Action Project， a media arts and leadership-training group. "The Choice is about the history of a family and Master Anti-Smoker is about the angers of second-hand smoke."Dream of the Invisibles describes young immigrants'（移民）feelings of both belonging and not belonging in their adopted country. The festival will end with an open reception at which other films will be shown. These include a music video and a full-length film whose title is Pressures. Young adult filmmakers all hope to show their works in international festivals like Sundance and Toronto.（） The festival is exactly the same as other events.（） Cori Gardner is managing director of Wingspan Arts which is a profit organization offering youth arts programs in the New York area.（） This year the festival will include films not only from Wingspan but also from other city organizations and one from a middle school in Arlington， Virginia.（） Ms.Gardner wants to make this a national event.（） The nine shorts to be shown range from a Claymation biography of B. B King to a science fiction adventure set in the year 3005.（） The Choice is about the angers of secondhand smoke.（） All movies are very interesting.（） Dream of the Invisibles describes young immigrants' feelings of both belonging and not belonging in their adopted country.（） The festival will end with a closing ceremony.（）

文献检索中检索字段的选择查全率由高到低的顺序是（）