【单选题】— We heard that some students got injured in this school bus accident in our province. — Yes, _____news came as _____shock to all of us. [ ]
【单选题】下列程序的执行结果为( )。 n=0 j=1 Do Until n>2 n=n+1 j=j+n*(n+1) Loop Print nj
【单选题】Who is the audience?
B.
The employees of the university.
D.
The new teachers of the university.
【简答题】Part 2 Read the passage and match the paragraphs with the subtitles below.
【单选题】______ the heat to a simmer and continue to cook for another 8~0 minutes or until most of the water has evaporated.
【简答题】Match the paragraphs with their main ideas.
【简答题】(14分)碳和氮的许多化合物在工农业生产和生活中有重要的作用。 (1)用CO 2 和H 2 合成CH 3 OH具有重要意义,既可以解决环境问题,还可解决能源危机。已知: + = + 2 △H = -725.5 kJ·mol -1 2H 2 (g)+O 2 (g) = 2H 2 O(l) △H = -565.6 kJ·mol -1 , 请写出工业上用CO 2 和H 2 合成CH 3 OH(l)的热化...
【简答题】Match the paragraphs with the statements best sumarize their general ideas.