1 minute
15 minutes
30 minutes
90 minutes
第1题：
A. 30 seconds
B. 1 minute
C. 5 minutes
D. 30 minutes
第2题：
A. 1 minute
B. 15 minutes
C. 30 minutes
D. 90 minutes
第3题：
As can be gathered from the passage, before 1910 the normal running time of a film was probably ______.
A．15 minutes or less
B．between 15 and 30 minutes
C．between 30 and 45 minutes
D．1 hour or more
第4题：
What could result in an incorrect oxygen concentration reading on the oxygen indicator ________．
A.Exposure to carbon dioxide for no more than 1 minute
B.Exposure to carbon dioxide for more than 10 minutes
C.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes
D.None of the above
第5题：
A. 60 seconds
B. 5 minutes
C. 15 minutes
D. 30 minutes
第6题：
A user logs in and is mapped to two roles. The first role has a maximum timeout value of 600 minutes and the default Juniper Networks logo on the user interface page. The second role has a maximum timeout value of 1200 minutes and a custom logo on the user interface page.Based on the merging of these two roles, which two will be applied?（）
A. A custom logo on the user interface page
B. A maximum timeout value of 600 minutes
C. A maximum time out value of 1200 minutes
D. A default Juniper Networks logo on the user interface page
第7题：
A. 5 minutes
B. 30 minutes
C. 60 minutes
D. 90 minutes
第8题：
What is the minimum period of time that the air supply for a self-contained breathing apparatus is required to last?________.
A.10 minutes
B.20 minutes
C.30 minutes
D.90 minutes
第9题：
A.1minute
B.5minutes
C.10minutes
D.30minutes
第10题：
What is the default BGP scanner time？（）