Research into the causes of cancer reveals that we are still unsure of its precise causes.
举一反三
- In this introduction we have diagnosed some of the causes of the illness and, in the following chapters, we will draw attention to its various unpleasant ____(症状).
- Which of the following is a correctly worded main point for a speech preparation outline? A: Migraine headaches and their causes. B: There are three major causes of migraine headaches. C: Causes of migraine headaches. D: Why people get migraine headaches.
- 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
- When writing a cause-and-effect essay, try to remember the following logical requirements: ____________. A: Do not oversimplify causes. B: Distinguish between direct and indirect causes and between major and minor causes. C: Omit links in a chain of causes. D: Support the analysis with your own understanding and opinions.
- Science is still （） of the causes of many kinds of cancer. A: ignorant B: unconscious C: conscious D: informed