第30题: [单项选择]Mary, accompanied by her brothers, ______ warmly welcomed by the audience. A. is B. are C. was D. were 参考答案:C 答案解析:[分析] 本句中主语是单数,尽管后面跟有as well as,with,together with等引起的短语,谓语动词仍用单数形式。主语如果是复数,谓语就用复数形式。
第31题: [单项选择]MIC小组命名的AML-M2标志染色体畸变是( ) A. t(9;22) B. t(15;17) C. t(8;21) D. t(8;22) E. t(1;19) 参考答案:C 答案解析:[解析] MIC建议急性白血病细胞遗传学分型为:M2/t(8;21);M3/t(15;17);M5a/t (11q);M4Eo/inv(16);M1/t(9;22);M2/t (6;9);M1/inv