摘要： Failure as he has been in his previous attempts, he still sticks the research aimed increasing production. A．in; to B．out; at C．on; in D．with; at 答案:D. stick in: 把某物贴在-内; 把-放入-; 将-刺入- ; stick out: 伸出来, 突出; 竖起; 坚持; 断言; stick on: 把粘贴在-上; 保持在上面; stick with sb/sth继续支持某人.保持与某人 aimed at “目的是... 它引导的短语作定语.修饰research.
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