题目

以下现象呈负相关的是                                                 (      ) A．人口出生率与人口自然增长率       B．经济发展水平与人口迁入量 C．妇女受教育程度与生育子女数       D．交通、通信的发展与人口迁移的规模和范围   答案：  C  Henry can’t attend the party _____ at Tom’s house at present because he is preparing the speech at the party _____ at Marie’s house tomorrow. A. held; being held    B. to be held; to be held C. to be held; held    D. being held; to be held