第10题: [单项选择]The millions of calculations involved, ______ by hand, would have lost all practical value by the time they were finished. A. had they been done B. having been done C. they had been done D. they were done 参考答案:A 答案解析:虚拟语气。空格处为虚拟条件句略了连词if,那么要部分倒装。
第12题: [单项选择]真核细胞型微生物的特点是 A. 细胞分化程度较低,有核膜、核仁,胞质内细胞器完整 B. 细胞分化程度较高,无核膜、核仁,胞质内细胞器完整 C. 细胞分化程度较高,有核膜、核仁,胞质内细胞器完整 D. 细胞分化程度较高,有核膜、核仁,胞质内细胞器不完整 E. 细胞分化程度较低,无核膜、核仁,胞质内细胞器不完整 参考答案:C
第15题: [配伍题]癌症的一级预防是指()|癌症的三级预防是指()|癌症的二级预防是指() A. 病因预防,消除或减少可能致癌的因素,降低发病率 B. 对有工业污染的区域,尽早对居民进行迁移 C. 早期发现,早期治疗,提高生存率,降低死亡率 D. 为能早期发现癌症,强调每6个月做一次全面查体 E. 诊治后的康复,提高生存质量,减轻痛苦,延长生命 参考答案:A|E|C