【正文】 知 UCC＝ 10V， Rb＝ 490kΩ ， RC=RL=3k Ω 。s illustration books first appeared in the 1600s in Europe. Their passage to China, however, took much longer, roughly 300 years. In China, children39。s plan to revive the European economy, but also buy more bonds issued by the European Investment Bank, EU leaders should be clear that China wants to see the EU maintain its integrity and a forward trajectory. Such a confidencebuilding effort is particularly valuable, especially from such a large country as China which already has a huge stake and seeks to further expand it in a strong eurozone. It will be a tragedy to allow inaction over the Greek crisis to stand in the way of growthboosting SinoEU cooperation. Like a shining pearl, West Lake is the symbol of Hangzhou city. From ancient times, many poems have praised the amazing scenery of the lake. At the very beginning, the West Lake was a part of the Qiantang River. In the year 822, Bai Juyi, a famous poet and an officer of the Tang Dynasty (AD 618907), suggested to build a stronger causeway to store water so that the lake was doubled in size. And during the Song Dynasty (AD 9601279), many temples and pagodas were built due to a Buddhist revival, and the look of West Lake was formed at that time. The West Lake is quite big and features different classic views from different locations. Technically, there are ten scenes which were marked by Emperor Qianlong with fourcharacter inscriptions 200 years ago, such as the Melting Snow on the Broken Bridge and Sunset Glow over Leifeng Pagoda. 。s website. Chinese tourists have taken a shine to rafting in Ubud, sightseeing in Tanah Lot, and surfing and diving in Nusa Lembongan, says Dai. Civet coffee, essential oil and woodcarvings are among the most popular products for Chinese tourists in Indonesia, she says. Indonesian food is also something that visitors shouldn39。 （ ） 答案 一、填空 甲；乙； 變化快慢；交變起點(diǎn) 有效； 311V； 反向擊穿；擊穿電壓 Uz； 增大； 電壓串聯(lián)負(fù)反饋； 二進(jìn)制數(shù)碼表示不同的信號(hào) 二、選擇題 A； C； C； D； A； D； B； C； C 三、判斷題 1； ； 3； 4； 5； √； 汽車(chē)電工電子基礎(chǔ)及電路分析作業(yè)講評(píng)（三） 此門(mén)課為中央電大命題，根據(jù)命題要點(diǎn)出一些題目，僅供參考。 市用照明電的電壓為 220V，這是指電壓的 值，它的最大值為 。 （ ） 當(dāng)電路處于通路狀態(tài)時(shí)，外電路電阻上的電壓等于電源電動(dòng)勢(shì)。s information, social and cultural section, says the new policy is aimed at strengthening peopletopeople contacts between the two countries. Dai Yu, marketing director of Ctrip, a major Chinese online travel agency, says: We39。s creditors . In response, Greece39。s artistic innovation before the advent of the Inter period. The fourth stage is featured with the spread of the Inter and the other puterized means of art innovation. Th