非诺洛芬是一种治疗类风湿性关节炎的药物,可通过以下方法合成: 请回答下列问题: (1)非诺洛芬中的含氧官能团为 和 (填名称). (2)反应
He _____ have finished his work; otherwise, he wouldn’t be enjoying himself by the seaside.A.shouldB.must C.need D.can
阅读下面的文字,回答文后问题。(16分) 玫瑰泪 [美国]威廉姆斯•科贝尔 ①我急匆匆地赶往街角的那间百货商店,心中暗自祈祷商店里的人能少一点
The girl _______ in bed _______ to us that she had _______ the dictionary on the bookshelf. A. lay; lied; lay B. lying; lied; laid C. lying; lay; laid
He ,________ you is to be responsible for what has happened . A. rather than B. more than C. other than D. less than
书写下列反应的离子方程式: (1)硫酸铝溶液中加入氨水: 。 (2)大理石加入醋酸溶液中:
从辩证唯物主义角度思考这种做法 A没有坚持具体问题具体分析 B违背了一切从实际出发的方法论要求 C体现了矛盾的特殊性包含着矛盾的普遍性 D割裂了
Hi,guy!You__ __ not park your car here.It's for our customers only. A.need B.can C.will D.may