【简答题】Write the presentation script you are going to give. Make sure you follow the structural patterns and use signposts we have discussed in previous lectures.
【简答题】Mix 12 mL KCl solution (c=0.02 mol ∙ L -1 ) with 100 mL AgNO 3 solution(c=0.05mol ∙ L -1 ) to prepared AgCl sol. please write down the structural formularof the micelles.
【简答题】单词拼写 ( 10 分) 小题1:____________( 不幸地) , Jim didn’t escape from the big fire that day. 小题2: The ___________( 解释 ) he gave about being late for the meeting is unbelieving. 小题3: We can’t ___________( 容忍 ) ...
【单选题】听力原文: Beatles fans had reasons to twist and shout on Tuesday with announcements of a Europe-wide tour by Paul McCartney and the release of a never-before seen video of three Beatles jamming together. ...