If you smell gas, ______ the gas, leave the house, and call the gas company.
举一反三
- A Popularity and use of natural gas B Natural gas reserves and supply C Natural gas prices D Clean fuel of choice E Disadvantages of natural gas F Natural gas consumption Paragraph 2______
- Now my house is less drafty and it helps a bit with the gas bill.
- 砷盐检查古蔡法中，中国药典规定砷斑为（）。 A: 1.0μgAs B: 1.5μgAs C: 2.0μgAs D: 2.5μgAs
- The gas mask can ______ you against poison gas.
- When<br/>some fruits emit (),<br/>it causes other fruits to ripen. A: ammonia<br/>gas B: oxygen<br/>gas C: ethylene<br/>gas D: nitrogen<br/>gas