题目

 —Do you know if he          to see us?  —I think he will come if he          free. A. come; is           B. comes; will be     C. will come; is      D. will come; will be 答案：C该图为我国某区域等高线及天气气候资料图，读图回答问题。（12分）（1）简述该区域主要地形区的地貌特征，并说明成因。（3分）                                                                                                                                                              （2）据图中信息描述①、②两城市该时期气候特征的主要差异及成因。（6分）                                                                                                                                                              （3）分析该区域发展种植业的不利自然条件。（3分）