题目

下列液体均处于25℃，有关叙述正确的是（     ） A．某物质的溶液pH < 7，则该物质一定是酸或强酸弱碱盐 B．pH ＝ 4.5的番茄汁中c(H+)是pH ＝ 6.5的牛奶中c(H+)的100倍 C．AgCl在同浓度的CaCl2和NaCl溶液中的溶解度相同 D．pH ＝ 5.6的CH3COOH与CH3COONa混合溶液中，c(Na+) > c(CH3COO－) 答案：BWhen I was twenty-eight, I left my hometown and went to another city. There I found my first     . I worked     a dentist in a hospital.. It was cloudy yesterday .When I was     to go home ,it started to rain. Then I found I       to take my umbrella. So I ran to the      quickly. When I reached there, , my clothes were all     . It got colder and colder. I     for about half an hour, but there weren’t any buses coming. Just then a car         behind me. The woman in the car rolled（滚动）down the window and asked if I     a ride. I remembered my mother told        not to take rides from strangers（陌生人）. So I said , “No, thanks.”        she still asked me to get into her car . I looked at her        and she looked like a kind woman . So I      in and she took me all the way to my house . I thanked her and wanted to        her some money . She refused (拒绝) and went off before I      ask for her name . I was really lucky to meet such a kind woman in the strange city.小题1:A．boatB．jobC．diaryD．role小题2:A．likeB．ofC．throughD．as小题3:A．readyB．similarC．famousD．bored小题4:A．rememberedB．learnedC．forgotD．hoped小题5:A．hospitalB．bus stopC．bankD．post office小题6:A．poorB．hotC．freshD．wet小题7:A．triedB．touchedC．waitedD．swung小题8:A．stoppedB．grewC．pickedD．happened小题9:A．followedB．wonC．stoodD．needed小题10:A．meB．himC．herD．them小题11:A．IfB．SoC．ButD．Although小题12:A．loudlyB．carefullyC．differentlyD．beautifully小题13:A．turnedB．jumpedC．blewD．camped小题14:A．feedB．chooseC．shareD．give小题15:A．couldB．mustC．shouldD．might