对粉尘制定了总粉尘、呼吸性粉尘的( )和短时间接触容许浓度两种接触限值，应尽量测定呼吸性粉尘的时间加权平均浓度进行评价，尚不具备测定呼吸性粉尘条件时，可测定总粉尘浓度进行评价。

A．时间加权平均容许浓度

B．最高容许浓度

C．最低容许浓度

D．平均容许浓度

A candidate for public office has proposed a program of wealth transfers based on the principles of utilitarianism. In support of her proposal, she makes the following statements: Statement 1: "Increasing taxes on high income earners will cause them to work more hours to maintain their after-tax income, resulting in greater economic output. " Statement 2: "The government will need to hire people to manage and administer the wealth transfers. These new jobs will further expand economic output. " Are these statements correct or incorrect Statement 1 Statement 2（） ①A. Incorrect Correct ②B. Correct Incorrect ③C. Incorrect Incorrect

A. ①

B. ②

C. ③