. Long exposure to can lead to lung cancer.
举一反三
- 中国大学MOOC: Smoking has long been ________ lung cancer and even breast cancer.
- Lung cancer is the No.1 cancer to kill American people. No cancer kills more American than lung cancer.
- Smoking has long been ________ lung cancer and even breast cancer. A: associated with B: related from C: built on D: broken down
- What kind of cancer may the sunlight protects us from? A: Stomach cancer. B: Skin cancer. C: Lung cancer. D: Blood cancer.
- “Smoking may lead to many illnesses, such as the lung cancer.” This sentence is developed by ___________.