正确答案: C

练习效应

题目：如采用被试内设计．最容易产生的效应是

解析：C

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学习资料的答案和解析：

[单选题]下列哪种氨基酸体内不能合成，必需靠食物供给?

缬氨酸 B．精氨酸

[多选题]为全面提高对外开放水平，我们应（ ）

利用加入世界贸易组织的契机，全面扩大对外开放

坚持市场多元化战略，努力扩大出口

进一步提高利用外资的质量和水平

深化外经贸体制改革

解析：

【参考解析】： 党的十六大报告在阐述全面提高对外开放水平时，以上四点都提到了。

[单选题]Passage TwoThe student who wants a newspaper career has much hard work ahead of him before he can ecome even a cub, or beginning reporter. He may begin by working on his high school ewspaper or yearbook.

Getting Started as a Reporter

解析：答案为C。根据第一段第一句，The student who wants a newspaper career has much hard work ahead of him before he can become even a cub，or beginning reporter 作出该项选择。