第13题: [单项选择]Questions 1 to 5 are based on an interview.The interviewee’s first job was with ______. A. a newspaper B. the government C. a construction firm D. a private company 参考答案:B 答案解析:[听力原文] 1-5 A: So, you’re an architect B: Yes. A: Do. you work for a public or private orga
第20题: [单项选择]用Percoll分离外周血淋巴细胞时,离心后得到的细胞层,由底层到表层分别是() A. 红细胞与粒细胞组分,富含淋巴细胞组分,死细胞组分,富含单核细胞组分 B. 富含淋巴细胞组分,红细胞与粒细胞组分,富含单核细胞组分,死细胞组分 C. 死细胞组分,富含单核细胞组分,富含淋巴细胞组分红细胞与粒细胞组分 D. 富含单核细胞组分,死细胞组分,富含淋巴细胞组分红细胞与粒细胞组分 E. 红细胞与粒细胞组分,富含淋巴细胞组分,富含单核细胞组分,死细胞组分 参考答案:E