年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語(yǔ) 來源: 題型:書面表達(dá)
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:選擇題
A. | better | B. | well | C. | good | D. | worse |
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:填空題
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:填空題
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:閱讀理解
The reason why blue LED lights won the 2014 Nobel Prize in physics is that they are to (81)resultin big changes in lighting. | |
Save and green | (82)Comparedwith other forms of lighting,LEDs are much more efficient because of the different ways they pass electric current. What's more,LED bulbs can be (83)used30 times longer than traditional bulbs. |
Lighting the world | (84)Apart/Asidefrom household applications of LED bulbs,they can also be used as street lights and car headlights. |
Because of their high efficiency,LEDs,especially solar-powered ones,(85)promiseto light areas without access to electricity. | |
Digital displays | Many smart phones,laptops and televisions use LEDs to back-light their LCD (86)screens. |
By using blue LED lasers,blu-ray players are likely to store (87)moredata. | |
People are now exploring more (88)potentialuses of LEDs such as transmitting data. | |
(89)Conclusion | LED lighting will have a positive (90)impact/influence/effecton environmental protection. |
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:閱讀理解
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:選擇題
A. | didn't I realize | B. | did I realize | ||
C. | I didn't realize | D. | I realized |
查看答案和解析>>
科目:高中英語(yǔ) 來源: 題型:閱讀理解
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com