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【单选题】
主要用于预防哮喘发作的平喘药是:A.
茶碱类
B.
糖皮质激素
C.
肾上腺素
D.
色苷酸钠
E.
胺醇
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反馈参考答案：
举一反三
【单选题】I finished the work on time under the help of him.
A.
finished the work
B.
on time
C.
under the help
D.
of him.
【简答题】When will the man come again?
【简答题】静态网页文件的扩展名为__.
【单选题】__________ your help, I finished the work in time.
A.
Because
B.
Thanks to
C.
Thanks for
D.
Without
【简答题】静态网页文件的扩展名为【 】。
【单选题】查看RIP协议邻居状态指令是( )
A.
show ip rip
B.
show ip rip neighbors
C.
show ip rip database
D.
show ip rip interface gei_0/1
【单选题】I finished the work several days the deadline. [ ]
A.
ahead of
B.
in front of
C.
in the face of
D.
in favor of
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