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【单选题】
通风不可以达到以下哪个功效:( )
A.
排出不良气体
B.
调节温度
C.
降低湿度
D.
增加湿度
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举一反三
【单选题】Which one is correct about probability sampling?
A.
A given size of the sample in simple random sample  is drawn with the help of a ordered number chart.
B.
Sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval in systematic sampling.
C.
The sample size for each sub-group can be unfixed to get representative sample in stratified Random Sample.
D.
Some of elements of selected groups is sampled and studied in one-stage cluster sampling.
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【简答题】画出变压器的“T”形、近似和简化等效电路图？
查看完整题目与答案
【简答题】The clauses in this sentence are marked (a) and (b), decide which one is the premise(s) and which one is the conclusion in its an argument. (a) A good society treasures its dissidents and maver...
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【单选题】About the knee joint, which one is incorrect?
A.
It is the largest and most complicated joint in the body.
B.
It is formed by the joints among femur, tibia, fibula and patella.
C.
The anterior cruciate ligament arises in front of the intercondylar eminence of the tibia.
D.
The medial meniscus is larger and less curved than the lateral meniscus.
查看完整题目与答案
【简答题】画出变压器的 “T”形、近似和简化等效电路。
查看完整题目与答案
【单选题】In the 2SLS estimation, which one is incorrect?
A.
The number of instrumental variables must be larger than or equal to the number of endogenous variables.
B.
Every instrumental variable must be correlated with every endogeneous variable.
C.
The 2SLS estimator is consistent under regularity conditions in Chapter 7, though its asymptotic variance may be larger than the OLS estimator.
D.
must be finite and of full rank to ensure that the 2SLS estimator is well-defined.
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【单选题】Which one is not the reason why American-born Asian women are paid better than Latinas?
A.
American-born Asian women have better education.
B.
Latinas have larger families to take care of.
C.
American-born Asian women are more intelligent.
D.
Latinas always live far away from their work place.
查看完整题目与答案
【单选题】Regarding the P value and the statistical conclusion, which one is wrong?
A.
the p-value of a statistical significance test represents the probability of obtaining values of the test statistic that are equal to or greater in magnitude than the observed test statistic.
B.
A p-value of 0.05, indicates that you would have only a 5 percent chance of drawing the sample being tested if the null hypothesis was actually true.
C.
The p-value is compared with the desired significance level of our test and, if it is larger, the result is significant.
D.
when P> α, not reject Ho (the difference is not statistically significant).
E.
when P≤ α, reject Ho , accept H1 (the difference is statistically significant).
查看完整题目与答案
【单选题】Which one is larger?
A.
The top part
B.
The lower part
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【单选题】患者,男性,岁,血栓性闭塞性脉管炎,下列护理措施不正确的是( )
A.
温水洗脚，保持足部清洁、干燥
B.
术后制动期间足部适当运动
C.
用热水袋热敷患肢，促进血液循环
D.
坚持多走路，以不出现疼痛为限
E.
有效镇痛，防止血管收缩
查看完整题目与答案
相关题目：
【单选题】Which one is correct about probability sampling?
A.
A given size of the sample in simple random sample  is drawn with the help of a ordered number chart.
B.
Sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval in systematic sampling.
C.
The sample size for each sub-group can be unfixed to get representative sample in stratified Random Sample.
D.
Some of elements of selected groups is sampled and studied in one-stage cluster sampling.
查看完整题目与答案
【简答题】画出变压器的“T”形、近似和简化等效电路图？
查看完整题目与答案
【简答题】The clauses in this sentence are marked (a) and (b), decide which one is the premise(s) and which one is the conclusion in its an argument. (a) A good society treasures its dissidents and maver...
查看完整题目与答案
【单选题】About the knee joint, which one is incorrect?
A.
It is the largest and most complicated joint in the body.
B.
It is formed by the joints among femur, tibia, fibula and patella.
C.
The anterior cruciate ligament arises in front of the intercondylar eminence of the tibia.
D.
The medial meniscus is larger and less curved than the lateral meniscus.
查看完整题目与答案
【简答题】画出变压器的 “T”形、近似和简化等效电路。
查看完整题目与答案
【单选题】In the 2SLS estimation, which one is incorrect?
A.
The number of instrumental variables must be larger than or equal to the number of endogenous variables.
B.
Every instrumental variable must be correlated with every endogeneous variable.
C.
The 2SLS estimator is consistent under regularity conditions in Chapter 7, though its asymptotic variance may be larger than the OLS estimator.
D.
must be finite and of full rank to ensure that the 2SLS estimator is well-defined.
查看完整题目与答案
【单选题】Which one is not the reason why American-born Asian women are paid better than Latinas?
A.
American-born Asian women have better education.
B.
Latinas have larger families to take care of.
C.
American-born Asian women are more intelligent.
D.
Latinas always live far away from their work place.
查看完整题目与答案
【单选题】Regarding the P value and the statistical conclusion, which one is wrong?
A.
the p-value of a statistical significance test represents the probability of obtaining values of the test statistic that are equal to or greater in magnitude than the observed test statistic.
B.
A p-value of 0.05, indicates that you would have only a 5 percent chance of drawing the sample being tested if the null hypothesis was actually true.
C.
The p-value is compared with the desired significance level of our test and, if it is larger, the result is significant.
D.
when P> α, not reject Ho (the difference is not statistically significant).
E.
when P≤ α, reject Ho , accept H1 (the difference is statistically significant).
查看完整题目与答案
【单选题】Which one is larger?
A.
The top part
B.
The lower part
查看完整题目与答案
【单选题】患者,男性,岁,血栓性闭塞性脉管炎,下列护理措施不正确的是( )
A.
温水洗脚，保持足部清洁、干燥
B.
术后制动期间足部适当运动
C.
用热水袋热敷患肢，促进血液循环
D.
坚持多走路，以不出现疼痛为限
E.
有效镇痛，防止血管收缩
查看完整题目与答案