網友回答：
詞性：形容詞，例句1:Many government regulations distinguish between investment and speculative gradesecurities. 許多政府監管規定對投資級別和投機級別的證券進行了區分，
溫馨提醒：隨時光變遷，文中所陳述觀點；準確性、難免有所變動，因此文中觀點僅供參考。
詞性：形容詞，例句1:Many government regulations distinguish between investment and speculative gradesecurities. 許多政府監管規定對投資級別和投機級別的證券進行了區分，
