The purpose of the author in mentioning the three researches is to ______.
A: make a contrastive analysis of them
B: illustrate the achievements in cancer therapy
C: present the similarities and differences between them
D: show how altered genes can cause cancer
A: make a contrastive analysis of them
B: illustrate the achievements in cancer therapy
C: present the similarities and differences between them
D: show how altered genes can cause cancer
举一反三
- Paragraph 1（） A: How is cancer treated B: Does cancer always cause pain C: Can cancer be prevented D: What is cancer E: How common is cancer F: What causes cancer
- 在PubMed中检索肺癌的预防或治疗的相关文献，检索策略应为 A: Lung cancer AND Prevention AND therapy B: Prevention OR therapy AND Lung cancer C: Prevention AND therapy OR Lung cancer D: Lung cancer AND Prevention OR therapy
- What are the differences between them?
- One of the consequences of urban life is that impersonal relationships among neighbors______. A: disrupt people's natural relations B: make them worry about crime C: cause them not to show concern for one another D: cause them to be suspicious of each other
- How can we make it ______ to them for all the worry we've caused them? A: off B: for C: out D: up