智慧树慕课答案
1、单选题：
以下关于回归分析的理解正确的是（ ）
选项：
A: 回归一词来源于高尔顿关于父辈和子辈身高关系的研究
B: 回归效应的古典含义是指父辈个子高，子女个子通常也高；父辈个子矮，子女通常也矮
C: 回归的现代含义是由自变量的取值去预测因变量的具体值
D: 不论何种数据，都可以用一条直线来精确地拟合输入输出数据
答案: 【 回归一词来源于高尔顿关于父辈和子辈身高关系的研究】点我阅读全文
1、单选题：
下列有关物理学史的说法正确的是:
选项：
A: 卡文迪许发现了万有引力定律
B: 法拉第发现了电流的磁效应
C: 麦克斯韦首先预言了电磁波的存在
D: 汤姆生提出了原子的核式结构模型
答案: 【 麦克斯韦首先预言了电磁波的存在】点我阅读全文
1、单选题：
使用市场价值来衡量经济体中产生的商品和服务数量的一个缺点是
选项：
A: 价格较高的商品数量更多
B: 即使不是所有商品的生产量都更大，GDP也增长
C: 市场价格一般反映消费者期望从一个商品获得的经济利润
D: 并非所有具有经济价值的商品和服务都在市场上被买卖
答案: 【 并非所有具有经济价值的商品和服务都在市场上被买卖】点我阅读全文
1、多选题：
如何预防新型冠状病毒感染？
选项：
A: 多通风勤洗手
B: 戴口罩
C: 少出门
D: 不吃野味
答案: 【 多通风勤洗手;
戴口罩;
少出门;
不吃野味】点我阅读全文
1、单选题：
此静平衡试验机的名称为：
选项：
A: 双侧支撑式静平衡试验机
B: 导轨式静平衡试验机
C: 圆盘式静平衡试验机
D: 钢槽式静平衡试验机
答案: 【 导轨式静平衡试验机】点我阅读全文
1、单选题：
以下观念中，__________并不属于启蒙运动提倡的思想潮流。
选项：
A: 发展科学
B: 认识自然
C: 追求理性
D: 笃信上帝
答案: 【 笃信上帝】点我阅读全文
1、单选题：
5. 痛痛病是由 污染造成的公害病。
选项：
A: 汞
B: 镉
C: 砷
D: 铬
答案: 【 镉】点我阅读全文
1、单选题：
Read the following paragraph and compare the summaries. Decide which is the best.Researchers in France and the United States have recently reported that baboons are able to think abstractly. It has been known for some time that chimpanzees are capable of abstract thought, but baboons are a more distant relation to mankind. In the experiment, scientists trained two baboons to use a personal computer and a joystick. The animals had to match computer designs which were basically the same, but had superficial differences. In the experiment the baboons performed better than would be expected by chance. The researchers describe their study in an article in the Journal of Experimental Psychology.
选项：
A: French and American scientists have shown for the first time that baboons have the ability to think in
an abstract way. The animals were taught to use a computer, and then had to select patterns that were similar, which they did at a rate better than chance.
B: Baboons are a kind of monkey more distant from
man than chimpanzees. Although it is known that chimpanzees are able to think abstractly, until recently it was not clear if baboons could do the same. But new research by various scientists has shown that this is so.
C: According to a recent article in the Journal of Experimental Psychology, baboons are able to
think in an abstract way. The article describes how researchers trained two baboons to use a personal computer and a joystick. The animals did better than would be expected. --Academic writing: A Handbook for International Students by Stephen Bailey, 2006, London & New York: Routledge, p. 34
D:
答案: 【 According to a recent article in the Journal of Experimental Psychology, baboons are able to
think in an abstract way. The article describes how researchers trained two baboons to use a personal computer and a joystick. The animals did better than would be expected. --Academic writing: A Handbook for International Students by Stephen Bailey, 2006, London & New York: Routledge, p. 34】点我阅读全文
1、单选题：
在电路中，改变参考点的位置，则：各点电位[ ]，任意两点间的电压[ ]。
选项：
A: 不变/不变
B: 变/不变
C: 不变/变
D: 变/变
答案: 【 变/不变】点我阅读全文