第12题: [单项选择]It was all agreed that the first problem the new government would have to ______ was unemployment. A. grip B. tackle C. discern D. manipulate 参考答案:B 答案解析:tackle the problem解决问题;grip掌握,控制;discern认识,辨别;manipulate操作,使用。
第13题: [单项选择]X-连锁低丙球蛋白血症是属于 A. T细胞缺陷 B. 联合免疫缺陷 C. 吞噬细胞缺陷 D. 补体缺陷病 E. B细胞缺陷病 参考答案:E