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问题 单项选择题

智力技能区别于操作技能的主要特点是（）

A．观念性

B．习得性

C．外显性

D．规则性

答案

参考答案：A

解析：

操作技能的特点是物质性、外显性及展开性；智力技能的特点是观念性、内隐性及简缩性。根据选项选择答案A。

完形填空

July 4th, the Independence Day, is an important holiday of the United States of America. It’s the   小题1:  (nation) holiday to celebrate the anniversary of their declaration of independence from Britain. The first Independence Day celebration took place on July 4, 1777   小题2:  the thirteen colonies in America gained independence from Britain. In   小题3:  early 1800s the traditions of parades, picnics, and fireworks were established as the way  小题4:  (celebrate) America’s birthday. And although fireworks   小题5:  (ban) in most places because of their danger, most towns and cities usually have big firework displays   小题6: all to see and enjoy. Today families often celebrate Independence Day by   小题7:  (host) or attending a picnic or barbecue and take the day off and gather with relatives.   小题8:  (decorate) are generally colored red, white, and blue, the colors of the American flag. Parades are often in the morning,

 小题9:  firework displays occur in the evening at such places as parks or town squares. The year of 2010 marked the 234th anniversary of the United States declaring   小题10:  independence from Britain. Hundreds of thousands of visitors took part in the celebrations in the nation’s capital.
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单项选择题

属于生理无效辐射的光质是（）。

A．红光

B．紫光

C．绿光

D．兰紫光
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