______ national treasure of China, which are protected by Chinese government, their number would be less than now.

(单选题)15.（ ） (单选题)14.（ ） (单选题)13.（ ） (单选题)12.（ ） (单选题)11.（ ） (单选题)Readers can conclude from this passage that ______. (单选题)Those who work in Carter’s company can ______. (单选题)Singles can reasonably dispose the dilemma by ______. (单选题)From Paragraph 2, we can know that singles in workplace have (单选题)The word “workhorses” in Paragraph 1 is used as ______.