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【判断题】
用犬作条件反射实验时,绿色信号作为条件刺激物。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】某厂发生食物中毒,9名患者潜伏期分别为:2、6、3、30、2、14、2、24(小时),问该食物中毒的平均潜伏期为多少小时?()
A.
5
B.
5.5
C.
6
D.
11
E.
12
【单选题】The regression equation Y = 3 + 2X has been calculated from 6 pairs of values, with X ranging from 1 to 10. The correlation coefficient is 0.8. It is estimated that Y = 43 when X = 20. Which of the fo...
A.
(i) and (ii) only
B.
(i) and (iii) only
C.
(ii) and (iv) only
D.
(i) and (iv) only
【简答题】We had a family where I saw relatives I hadn’t seen for 20 years. urge estimate reunion hang out
【简答题】I hadn't been far wrong my estimate his capabilities.
【单选题】The regression equation Y=3+2x has been calculated from 6 pairs of values, with x range from 1 to 10. The correlation coefficient is 0.8. It is estimated that y=43 when x=20.Which of the following are...
A.
(i) and (ii) only
B.
(i) and (iii) only
C.
(ii) and (iv) only
D.
(i) and (iv) only
【简答题】(estimate)I ___________ the number of people who would come this morning; I thought there would be more.
【简答题】I (estimate)____the number of people who would come this morning; I thought there would be more.
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