未知题型 According to Paragraph 3 , organic food______.A．has gone down in qualityB．has more nutrientsC．can replace mass-produced foodD．lacks Vitamin C

单项选择题 美国有史一来的最大的航母是()

未知题型 What does the author say about meat and poultry?A．Organic meat and poultry is hardly available.B．A great amount of meat is consumed every year.C．They may contain antibiotics and growth hormones.D．Merciless killing of the animals lowers their quality.