品行问题（conduct problem)

A.著作

B.品行

C.利润

D.建筑师

A.stimulate

B.conduct

C.intend

D.uncover

Local PC IP address: 190.0.3.35/24Default Gateway: 190.0.3.1Remote Server: 190.0.5.250/24You then conduct the following tests from the local PC:Ping 127.0.0.1 - UnsuccessfulPing 190.0.3.35 - SuccessfulPing 190.0.3.1 - UnsuccessfulPing 190.0.5.250 - UnsuccessfulWhat is the underlying cause of this problem？（）

A. TCP/IP not correctly installed

B. Local physical layer problem

C. NIC not functioning

D. Remote physical layer problem

Local PC IP address: 190.0.3.35/24

Default Gateway: 190.0.3.1

Remote Server: 190.0.5.250/24

You then conduct the following tests from the local PC:

Ping 127.0.0.1 - Unsuccessful

Ping 190.0.3.35 - Successful

Ping 190.0.3.1 - Unsuccessful

Ping 190.0.5.250 – Unsuccessful

What is the underlying cause of this problem？

A．TCP/IP not correctly installed

B．Local physical layer problem

C．NIC not functioning

D．Remote physical layer problem

E．None of the above

A researcher is interested in testing to determine if the mean of population one is greater than the mean of population two. The null hypothesis is that there is no difference in the population means (i.e. the difference is zero). The alternative hypothesis is that there is a difference (i.e. the difference is not equal to zero). He randomly selects a sample of 9 items from population one resulting in a mean of 14.3 and a standard deviation of 3.4. He randomly selects a sample of 14 items from population two resulting in a mean of 11.8 and a standard deviation 2.9. He is using an alpha value of .10 to conduct this test. Assuming that the populations are normally distributed, the degrees of freedom for this problem are _______.

A、23

B、22

C、21

D、2

A.不良习惯

B.情绪问题

C.品行问题

D.行为问题