蝇控制标准是孳生地得到有效治理，幼虫和蛹的检出率不超过（）。
A.3%
B.5%
参考答案：A
根据句子意思，用括号中所给单词的正确形式填空。
1. His _______ (die) was a great loss to the whole world.
2. Many film stars had been ______ (sing) before they entered the film industry.
3. Although she is not a beauty, many people find her ________ (attract).
4. She would like _______ (help) others in need.
5. You'd better _______ (not play) on the road.
6. A film called A Strange Woman's Letter is ________ (adapt) from Stefan Zweig's works.
7. Audrey Hepburn's great ________ (achieve) is to be a humanitarian.
下列关于财务比率的表述，正确的是( )。
A．盈利能力比率体现管理层控制费用并获得投资收益的能力B．杠杆比率用来判断企业归还短期债务的能力C．流动性比率用于体现管理层管理和控制资产的能力D．效率比率用来衡量企业所有者利用自有资金获得融资的能力
