题型：问答题 简答题 阅读下面材料，根据材料内容判断句子正误（正确用“A”表示，错误用“B”表示）。 Sunny English Club For students16:00-18:00 every Saturday 150 yuan a month Tel: 3785290 Foreign teachers, Englishsongs and films and more!Music Class For children under 159:00-17:00 every Sunday 20 yuan a class Art School of FujianTel: 5409871 Learn to play the piano, the guitar and the drum.Health Centre9:00-17:3016 Heping Street Tel: 3801451 Give you good advice to keep healthy! Free examinations for those over 70.( )1. You'll pay 150 yuan if you want to study in the English club for a month.( )2. Music Class is open from 9:00 to 17:00 every Sunday. ( )3. Children under 15 can learn to play the piano in Art School of Fujian every Saturday.( )4. If you want to know how to keep fit, you can go to Health Centre. ( )5. Those who are over 60 years old can get free examinations in Health Centre. 查看答案
题型：问答题 简答题 在电影院偷拍是制作盗版电影的惯用方法．为此，科学家发明了一种反盗版电影的装置，将装置安装在银幕后面，其发出的红外线通过银幕上的小孔射向观众席上的偷拍摄像机，在感光底片上成倒立、______的实像，从而形成干扰点．此装置的使用______（填“不会”或“会”）影响观众的观看． 查看答案
题型：问答题 简答题 用名义长度为50m的钢尺量得AB距离为340.460m，丈量时的拉力等于标准拉力，温度为30℃，其尺长方程为L=50.000+0.003+0.0000125（t-20℃）×50，求AB的正确长度？ 查看答案