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>> 成人高等教育 / 现代教育技术
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佳题速递：
2、When you take a walk in many of the cities in the West, you often see a lot of people walking dogs. It is still true that a dog is the most useful and faithful animal in the world. But the reasons why people keep a dog have changed.
In the old days, people used to train dogs to protect themselves against attacks by other beasts. And later, they came to realize that the dog was not only useful for protection but willing to obey his master. For example, when people used dogs for hunting, the dogs would not eat what was caught without permission. But now, people in the city need not protect themselves against attacks of an animal.
Why do they keep dogs, then? Some people keep dogs to protect themselves from robbery, but the most important reason is for companionship. For a child, a dog is his best friend when he has no friends to play with. For young couples, a dog is their child when they have no children. For old couples, a dog is also their child when their real children have grown up. So the main reason why people keep dogs has changed from protection to friendship.统考英语阅读理解 高等数学三：线性代数 完整的尺寸是由哪几项内容组成的?(A) 尺寸界线 (B) 尺寸线 (C) 尺寸数字工程图学 27、Jane’s dress is similar in design _ _ _ _ _ _ her sister’s.
A.like
B.with
C.to
D.as统考英语词汇与语法 关于酶化学修饰的说法，错误的是： A、 A、 一般都有活性型和非活性型两种形式 B、 B、 活性型和非活性型两种形式，在不同酶的催化下可以互变 C、 C、 催化互变的酶，受激素等的控制 D、 D、 修饰是非共价键变化，有放大效应 E、 E、 不同酶的同种修饰，产生不同的效应生物化学与分子生物学 23、PowerPoint 2010 幻灯片编辑中，将已插入的艺术字，更换其他艺术字样式，应该进行的操作在__________。
A.“审阅”选项卡中
B.“开始”选项卡中
C.“绘图工具”—>“格式”选项卡中
D.“设计”选项卡中计算机统考