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【单选题】
下面哪一个不属于OSI参考模型（）A.
系统层
B.
应用层
C.
会话层
D.
物理层
手机使用
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反馈参考答案：
举一反三
【判断题】混凝土拆模后可能与流动水接触时，应在混凝土与流动的地表水或地下水接触前采取有效保温保湿养护措施养护14d以上，且确保混凝土获得75%以上的设计强度。()
A.
正确
B.
错误
【单选题】Those ________ are interested in the job position need to send an email to us.
A.
what
B.
whom
C.
which
D.
who
【简答题】There are several ____ in this street. A. flower shops B. flowers shops C. flower's shops D. flowers' shops 27. Those who come from __ speak __. A. German; German B. German; Germany C. Germa...
【单选题】Those _____are _____.
A.
woman teacher
B.
women ， teacher
C.
womans ， teachers
D.
women teachers
【单选题】The history of African-Americans during the past 400 years is traditionally narrated【21】an ongoing straggle against【22】and indifference on the part of the American mainstream, and a straggle【23】as an ...
A.
like
B.
as
C.
for
D.
with
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