什么是原生矿尘？
参考答案：
原生矿尘为在开采前因地质作用和地质变化等原因而生成的矿尘。
Which of the following would be permissible under Standard Ⅱ (C) , Misrepresentation（）
A. Including a graph showing the Fed’s discount rates over the previous 12 months in a report that goes to clients.
B. Using excerpts from a report prepared by a well known outside research firm without acknowledgement.
C. Reporting statistics prepared by an outside firm, identifying the source but omitting caveats and qualifying statements.
中 * * 党“八大”确定的当时党和全国人民的主要任务是 [ ]
A．迅速恢复和发展社会经济
B．对国民经济进行全面调整
C．实现社会主义三大改造
D．集中力量发展社会生产力
