下列哪些指标属于杠杆指标（） ["资产负债率","负债与所有权比率","负债与有形净资产比率","利息保障倍数"]
She（）a talk on philosophy to the society. ["delivered","deliberated","dyed","delighted"]
乙炔气瓶的颜色标志，瓶体应涂（）色。 ["白","银灰","铝白"]
《玉簪记·秋江》里的主要人物有（）。 ["张于湖","潘必正","张生","陈妙常"]
The talk took place in the（）of a diplomatic observer. ["presence","light","honor","present"]
《供电营业规则》第四十七条规定：产权属于用户且由用户运行维护的线路，以（）或（）为分界点，（）属用户。
