电大机械制图期末考试复习题资料小抄【电大考试必备】.doc

电大机械制图期末考试复习题资料参考1. 已知ABC在两条平行线DE、FG所决定的平面内，试完成ABC的水平投影。由题目已知ABC在两条平行线DE、FG所决定的平面内，则存在ab与直线de的交点k和k，存在直线ab与fg的交点m和m， 由mk连线和ac电的投影，决定了直线ac在俯视图的位置：同理，通过n点确定点b的位置，kmmkcabnn2、 已知CD为ABC内的一条水平线，完成ABC的正面投影。3、 判断空间位置直线AB在 水平面投影（或H） 面的投影有积聚性，因此称之为 铅垂线 直线CD在 侧面投影（或W） 面的投影反映实长，因此称之为 侧平线 平面P在 侧面投影（或W） 面的投影有积聚性，因此称之为 侧垂面 平面Q在 侧面投影（或W） 面的投影反映实形，因此称之为 侧平面 4、尺规绘图知切割体的正面投影和水平投影，完成其侧面投影 1.已知切割体的正面投影和水平投影，完成其侧面投影5已知物体的左视图和俯视图，完成其主视图并取半剖视6、读图7、标注（尺寸数字以图上量取值为准）8、如图所示，已知主视图和俯视图，完成给出零件的画侧视图。要求：图中斜截交圆柱面的平面交线需要表示至少一个一般点的求解过程。答案9、如图所示，补全零件图的剖视图10、标注，如下图所示，在图中标注尺寸，所标注尺寸数值按1：1的比例从图中量取，取整数，并按表中给出地Ra数值在图标注表面粗糙度。表面ABCD其余Ra6.36.31.66.312.511、如下图所示，已知主视图和俯视图，完成给出零件的画侧视图。要求：图中斜截交圆柱面的平面交线需要表示至少一个一般点的求解过程。 答案12、如下图所示，已知侧视图和俯视图，画主视图。13、如下图所示，已知主视图和俯视图，画侧视图。14、如下图所示，已知侧视图和俯视图，画主视图O(_)O谢谢！2015年中央电大期末复习考试小抄大全，电大期末考试必备小抄，电大考试必过小抄请您删除一下内容，O(_)O谢谢！2015年中央电大期末复习考试小抄大全，电大期末考试必备小抄，电大考试必过小抄The battle for young viewers CCTV is embracing Internet culture and working with independent producers on TV shows to woo audiences under 35. Han Bing bin reports. After charming audiences with his warm smile for 14 years, China Central Television host Li Jiaming recently found himself targeted by a group of young netizens unhappy with his style. The complaints came after Li hosted the premiere of Rising Star on Oct 31. It is a singing competition show that originated in Israel. Many young netizens found his hosting style slow and boring and mocked it as "CCTV evening gala style". They even initiated an online campaign to replace him. The 40-year-old host's reaction to the criticism was surprising. During the second episode, he jokingly called himself "the slow Jiaming" and acted much younger, talking faster and louder. "It's like selling a product. When the customers file a complaint, you must change," says Li. "In the Internet age, you get feedback very quickly. These young people are so cute. When you're willing to change for them, they will quickly like you back." In order to win more young viewers, CCTV is relying on programs such as Rising Star to embrace Internet culture. In Rising Star, a studio audience and fans watching on television vote for their favorite singers in real time, using the instant-messaging app WeChat. Rising Star was designed to be a live broadcast, but the Chinese version isn't because of policy reasons. Still, WeChat votes by viewers at home are still a major factor in determining which contestants advance to the next round. In the show's latest episode, more than 6.5 million votes were cast via WeChat. "Now the competition among entertainment shows is very fierce. Audiences have more diverse needs. CCTV needs to embrace an open attitude, interact with young audiences and blend with the Internet," says Lyu Yitao, director of CCTV's entertainment channel. The producer of Rising Star, Enlight Media, says the program will have "a phenomenal effect" given CCTV's audience base nationwide. "But it comes with a challenge," says Zhang Hang, chief producer of the program and CEO of Enlight Media's TV business. Unlike top-ranking provincial satellite channels such as Hunan TV, which have a large base of young fans thanks to a series of phenomenally popular entertainment and reality shows, CCTV productions are usually more conservative and serious, and thus have a much older audience base. "If we were to run this program on Hunan, we may attract twice as many viewers," says Zhang. "But since we didn't make it there, we now have to make the best out of the given conditions. And it means we have to make certain compromises." When the current season of Rising Star ends, Zhang says his company will conduct an overall evaluation of the program and make adjustments for future seasons. Although audience ratings haven't lived up to Zhang's expectations, he says the program has already helped CCTV attract more young people. According to Enlight Media, the number of people ages 15 to 35 who watched the first episode of Rising Star was 76 percent higher than the usual audience for CCTV entertainment productions. In order to attract young audiences, CCTV has been working with independent production companies. As one of CCTV's closest partners, Enlight Media has produced several entertainment and reality shows for the company's channels, including the Chinese version of The Biggest Loser on CCTV's business channel and an original teenager talent show Shaonian Zhongguoqiang (Strong Young Chinese) on CCTV1. This year CCTV also licensed EE-Media, the producer of the popular Super Girl talent shows, to produce the talk show Hi! 2014, hosted by Taiwan pop star Harlem Yu and one of China's most popular TV stars Xie Na. The show is geared toward younger audiences. Canxing Productions, which rose to fame with the success of its Voice of China series on Zhejiang TV, also produced two talent shows for CCTV. One is an original production called Songs of China, which ended up as one of CCTV's most watched programs of 2014. The State Administration of Press, Publication, Radio, Film and Television announced earlier this year that, starting in 2015, only one music talent show can be aired nationwide during prime time each season, and there can be only one program based on foreign formats each year. However, domestic media report that such policies don't apply to CCTV, meaning it will become a highly desired platform by production companies. Wang Changtian, CEO of Enlight Media, confirmed to the Shanghai Securities News that its programs scheduled to air on CCTV next year, which include at least two reality shows, won't be affected. A kung fu-themed reality show, produced by Canxing, is also reportedly scheduled to run on CCTV next year. CCTV is "very active. The level of its acceptance of new ideas is even beyond my imagination," says Zhang Hang. "Our cooperation with CCTV will surely continue." When winter comes, nothing is more relaxing than a hot spring bath. For thousands of years, natural mineral-rich hot spring baths have also been used to relieve health ailments. The water found in natural hot springs contains a variety of different minerals, and the most common one is sulfur. It has a "rotten egg" smell but is excellent for skin. The sulfur-containing water might be just what the doctor ordered when it comes to relieving pain, stress, itchy skin, arthritis and more. Hot springs resorts are thriving as biting cold winter arrives. Here we take a look at some of the best natural hot springs China has to offer.