第20题: [单项选择]WFP' s plans for underdeveloped countries emphasize the need to ______. A. develop types of fruit trees that will resist disease B. extend the area of land fit for cultivation C. remove or flatten out the tops of hills D. provide food for farm animals 参考答案:B 答案解析:[试题分析] 本题为推理判断题。
[详细解答] WFP对接受援助的国家有要求,即The’government of the would-be recipient country has to put
第21题: [多项选择]正常肺部X线表现的解剖结构,哪一项错误() A. 肺野是由含气肺泡组成 B. 肺纹理是主要由支气管组成 C. 肺门主要由肺动、静脉组成 D. 肺野的横分区是以肋骨为标点 E. 右肺门上部由肺动脉构成,下部由静脉构成 参考答案:B, E