第2题: [单项选择]所有企业和用人单位都要强化社会责任，________和_______农民工的劳动和创造，不得违反国家法律法规和政策规定损害农民工权益。 填入画横线部分最恰当的一项是( )。 A. 保护 爱护 B. 珍惜 爱护 C. 鼓励 保护 D. 重视 保护 参考答案:B 答案解析:[解析] “珍惜”的是农民工的劳动，“爱护”的是农民工的创造，且“珍惜”和“爱护”有内在的逻辑关系，故选B。
第8题: [单项选择]下列哪项不属于管道形成受阻（） A. 处女膜闭锁 B. 阴道闭锁 C. 无子宫 D. 阴道斜隔 E. 阴道横膈 参考答案:C
第9题: [单项选择]以下有关生物变异的叙述，正确的是（） A. 发生于体细胞中的突变以及三倍体西瓜的无籽性状都是可以遗传的 B. 基因重组和染色体数畸变均不会引起DNA碱基序列的改变 C. 基因重组导致杂合体Aa自交后代出现性状分离 D. 花药离体培养过程中，基因重组、基因突变和染色体畸变均有可能发生 参考答案:B
第10题: [单项选择]At the age of 14, Sanders ______. A. worked as a doctor by cleaning the medicine bottles B. met some doctors who were very friendly to him C. was interested in talking with patients D. remained together with the doctors 参考答案:D
第32题: [单项选择]All that he had learned only made him feel how little he knew in comparison with ______ remained to be known. A. what was B. what C. which was D. that 参考答案:B 答案解析:what引导一个名词性从句，作with的宾语，相当于in comparison with the thing that remained to be known。
