单项选择题
A. American individualism. B. Personal values of Americans. C. Americans’ attitude toward privacy. D. Professional values of Americans.
A. The level of saltiness in the ocean is extraordinarily high. B. The average level of salinity in the ocean is higher than that of inland lakes. C. Salt has been gradually accumulating in the ocean. D. Salt has accumulated very quickly at the early stage of life formation.
A. Pizza. B. Chocolate. C. Pie. D. Popcorn.