题目

下列化合物中离子核间距最小的是（    ） A. LiF                 B. CsI                  C. NaBr               D. KCl 答案：A本题你将听到一篇短文，读两遍，请从每个小题的三个 选项中，选出最恰当的一项。( ）16. Where would Harry go to give a lecture?   A. To England. B. To Russia. C. To America.( ）17. Where did Harry put Rupert?   A. In his backpack.   B. In a small basket.   C. In a large brown suitcase.( ）18. What did Harry buy in the shop?   A. Some food. B. A newspaper. C. A suitcase.( ）19. Where did Harry leave his suitcase?   A. In the shop. B. At home.   C. Near the information desk.( ）20. What happened at last?   A. Harry's suitcase was taken by someone by mistake.   B. Harry's suitcase was stolen.   C. Harry's suitcase was broken.