单项选择题 We should keep in mind()the feedback is very helpful for planning future meetings and events.A. whatB. thatC. when

单项选择题 The investor should be aware of the limitations of the financial statement analysis()the annual report.A. based onB. basing onC. base on

单项选择题 高校科研应采用以应用研究和发展研究来支撑基础研究的原则。（ ）