皮皮学,免费搜题
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【简答题】
My friend Mike was shaking his head in disbelief. “That young woman who just waited on me,” he said, pointing to an employee of the fast food restaurant where we were eating, “had to call someone over to help her count change. The cash register ( 现金出纳机 ) showed her I needed 99 cents, but she couldn't figure out how to count out the coins.” I understood Mike's concern. What we have done in this country, although unintentionally, is to create several generations of individuals most of whom have no idea how to reason; how to do simple math; how to do research; or, finally, how to be creative ( 有创造力的 ). The reason for this is our overuse of information technology: video games, television, digital watches, calculators, and computers. Information technology feeds us information without requiring us to think about it and let us perform operations without understanding them. It is time we took a hard look at an educational system that only teaches our children how to push buttons. Our kids can't tell time if the clock has hands. They can use calculators, but cannot add, subtract, divide, or multiply. Video games have taken the place of active, imaginative play. Although most of them are technically literate, they choose not to read. They are so used to television and movies that they cannot use their imagination to stay interested in a book. It is not enough to recognize that a problem exists. What we need is a solution. The one I offer is simple to suggest, but may be impossible to carry out. We must unplug our children. If we don't, they will never learn how to solve problems. They will never learn even basic reasoning skills and will certainly not develop creativity. Instead of filling classrooms with electronics, let's concentrate on good old-fashioned literacy ― reading books. Students must be taught not to perform computer operations by rote ( 死记 ), but to figure and reason for themselves. They must see how things work and how processes lead to results, they must also stretch their imagination.
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举一反三
【单选题】使用8255可以扩展出( )I/O口线。
A.
16根
B.
24根
C.
22根
D.
32根
【判断题】日记、书信体小说的出现与发表显示了当时社会的宽容、文学观念的丰富,也是“个人主义”兴起的结果。
A.
正确
B.
错误
【判断题】共同海损不仅涉及到货方,还涉及到船方。( )
A.
正确
B.
错误
【判断题】共同海损不仅涉及到货方,还 可能 涉及到船方。
A.
正确
B.
错误
【单选题】使用 8255 可以扩展出的 I/O 口线是
A.
16 根
B.
24 根
C.
22 根
D.
32 根
【简答题】使用8255可以扩展出的I/O口线是 根。
【判断题】共同海损不仅涉及到货方,还涉及到船方及保险公司。
A.
正确
B.
错误
【单选题】使用8255 可以扩展出的I/O 口线是( )
A.
16根
B.
22根
C.
24根
D.
32根
【单选题】数字信号与模拟信号的区别是()
A.
时间离散
B.
幅度是否离散
C.
时间幅度都离散
D.
都不对
【多选题】下列哪些景观以植物听觉美为主题:_____。
A.
听雨轩
B.
留听阁
C.
竹外一枝轩
D.
待霜亭