题型：问答题 简答题 阅读下面短文，掌握其大意，并根据要求完成下列各题。 The Music Club The School Music Club needs two people. Read about the four people. How many things can each student do? NameWhat he or she can doWhat he or she can't do Ma Liliplay the violin and the pianosing and danceJennysing, play the trumpet and the guitardanceNicksing and play the violindanceAlansing, dance, play the trumpet and the guitarplay the violin1. Ma Lili can play the _______ and the piano,but she can't sing _______ dance. A. violin; and B. violin; or C. trumpet; and D. trumpet; or 2. Jenny can do _______ things. A. one B. two C. three D. four 3. Nick can play the _______ and sing, but cant dance.A. chess B. trumpet C. guitar D. violin 4. Alan can do _______ things. A. three B. four C. five D. six 5. _______ can join music club. Because they can do more things than the others. A. Ma Lili and Nick B. Ma Lili and Jenny C. Jenny and Alan D. Alan and Nick 查看答案
题型：问答题 简答题 有下列物质：（1）Na （2）Na2O （3）酒精（4）CO2（5）NH3 （6）HCl（7）H2SO4 （8）BaSO4（9）蔗糖 （10）NaCl溶液其中属于电解质的是______；属于非电解质的是______；既不属于电解质也不属于非电解质，但能导电的是______．（填序号） 查看答案