Which of the following is not true concerning the study().

A. It’s done by American Institutes for Research.

B. It reveals students academic performance.

C. It shows that the assumption that college students are graduating with ascertained level of proficient skills.

D. It reveals that graduates do a better job when filling out job applications than reading newspapers.

下面哪个选项不应产生告警？（）

A.和ISMP服务器连接中断

B.和短信服务器连接中断

C.CPU负荷超过阀值

D.用户无法上网