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【单选题】
Starting a New Tradition Shantelle Davis is a nine-year-old girl in New York. On a cold night in December, her family is standing around the kitchen table while she lights a candle. The table is decorated with baskets of fruits and vegetables and ears of com for Shantelle and her two brothers. “This candle represents umoja, an African word that means being together,” Shantelle says. “That's the most important thing for a family.” Tonight is the first night of Kwanzaa, and Shantelle is spending the holiday with her family. More than 5 million African Americans celebrate Kwanzaa every year from December 26 until January I. It's a time when they get together with their families to think about their history and their ancestors in Africa. Kwanzaa is very unusual because it was started by one man. In 1966, an American named Maulana Karenga wanted a holiday for African-Americans to honor their culture and traditions. So he used words and customs from Africa to create a new celebration. He took the name Kwanzaa from the words for “first fruits” in Swahili, an African language. At first, a few American families had small celebrations at home. Now there are also Kwanzaa events in schools and public places,and Kwanzaa has spread to other countries like Canada and Jamaica. The main symbol of Kwanzaa is a candleholder with seven candles, one for each of the principles of Kwanzaa. Each night, a family member lights one of the candles and talks about the idea it represents:being together, being yourself, helping each other, sharing, having a goal,creating, and believing. The candles are red, black, and green, the colors of Kwanzaa. The parents also pour drinks to honor family members who have died. On the last night of Kwanzaa, there is a big dinner with African food, and children receive small presents. Today people can buy Kwanzaa greeting cards and special Kwanzaa clothes. Stores sell Kwanzaa candles and candleholders. Some people don't believe that Kwanzaa is a real holiday,because it's so new. But other people say that customs and celebrations are always changing and that Kwanzaa shows what is important in people's lives. Shantelle Davis says she likes Kwanzaa because it's fun. “But I also learn new things every year,' she says. 1. Kwanzaa is celebrated at the end of the year.
A.
Right
B.
Wrong
C.
Not mentioned
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【单选题】要求设计一个类,它拥有一个特殊的成员域,该成员域必须能够被这个类的子类访问到,但是不能被不在同一个包内的其他类访问到。下面可以满足上述要求的是
A.
该成员域的封装属性设置为 public
B.
该成员域的封装属性设置为 private
C.
该成员域的封装属性设置为 protected
D.
该成员域不需要特殊的封装属性
【单选题】三坐标测量机具有()的特点,广泛应用于产品测绘,复杂型面检测,工夹具测量以及研制过程中间测量等多个方面。
A.
操作简便
B.
全自动
C.
高精度、高效率、多功能
D.
节能环保
【判断题】三坐标测量机是利用点位测量原理工作的,机借助测量机采集零件表面上一系列有意义的空间点,然后通过数字处理,求得这些点组成的特定几何元素的位置及其范围。
A.
正确
B.
错误
【单选题】()的三坐标测量机特点是结构紧凑、工作面开阔、装卸工件方便、便于是测量,悬臂易于变形。
A.
桥式
B.
悬臂式
C.
龙门式
D.
坐标镗床式
【单选题】三坐标测量机是利用点位测量原理工作的,机借助测量机采集零件表面上一系列有意义的空间点,然后通过( ),求得这些点组成的特定几何元素的位置及其形状。
A.
集中处理
B.
分析处理
C.
计算处理
D.
数字处理
【简答题】简述固定桥式三坐标测量机的机构特点及其优缺点。
【简答题】中国古代常见的标记广告实体有哪些?(即在哪些物品上出现了标记广告)(列出实物及对应朝代,不少于三组)
【简答题】在药品质量标准中,性状项下一般包含哪些内容?
【单选题】要求设计一个类,它拥有一个特殊的成员域,该成员域必须能够被 这个类的子类访问到,但是不能被不在同一个包内的其他类访到,可以 满足上述要求的是()。
A.
该成员域的封装属性设置为 public
B.
该成员域的封装属性设置为 private
C.
该成员域的封装属性设置为 protected
D.
该成员域不需要特殊的封装属性
【判断题】三坐标测量机是利用点位测量原理工作的,机借助测量机采集零件表面上一系列有意义的空间点,然后通过数字处理,求得这些点组成的特定几何元素的位置及其范围。
A.
正确
B.
错误
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