皮皮学，免费搜题
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【简答题】
Choose the correct alternative in italics in these sentences, written by IELTS candidates. 1 The steadiest / most steady development can be seen in the USA. 2 The second popular / most popular university course is business studies. 3 In 2000, the lowest / least number of unemployed graduates was recorded. 4 The most / Most important change of school subjects occurred in the 1990s. 5 Regional colleges are where the most / greatest number of students choose to go. 6 Education is considered the most important / most important area in life. 7 Tuition fees are the one / one of the most important considerations for students. 8 Watching television is the favourite / most favourite activity for many 17-year-olds.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】油机发电机组应能在市电停电后（）分钟内正常启动并供电。
【简答题】简述血浆蛋白质的生理功能。
【多选题】简述蛋白质的主要生理功能
A.
构成和修复机体组织； 构成酶、激素和抗体；
B.
维持正常的血浆渗透压； 运输氧气及营养物质；
C.
维持机体的酸碱平衡；
D.
供给能量。