第8题: [单项选择]To their credit the Department of Energy ______ these ideas and funded a detailed study. A. took over B. took on C. took up D. took to 参考答案:C 答案解析:句意;令他们感到光荣的是,能源部采纳了这些想法并为一个详细的研究报告作了资助。take up意为“采纳(观点)”;take over意为“接收,接管,占据”;take on意为“承担”;take to
第13题: [单项选择]HIV的主要传播途径是()。 A. 血源传播 B. 母婴传播 C. 性传播 D. 人工受精传播 E. 器官移植传播 参考答案:C 答案解析:艾滋病传播途径:
①性接触传播:为本病的主要传播途径。
②血源传播:输入被HIV污染的鲜血、血浆或其他血制品;因不规范和非法采血;静脉吸毒者使用HIV病人用过的注射器;医院消毒隔离措施不严