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【单选题】
下列属于垂直传播的是()A.
母婴传播
B.
成人之间的传播
C.
同性恋者之间传播
D.
传播
E.
唾液传播
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【简答题】Responsible Risks Expenses Import License Formality
【单选题】下面关于C语言程序书写格式的说法正确的是( )
A.
书写C语言源程序时总是从main()开始X
B.
C语言书写限制严格，一行内只能写一条语句
C.
C语言书写比较自由，一条语句可以分多行来写
D.
C语言书写格式严格要求一行写一条语句且要写行号
【单选题】When we practice English speaking, we often end up ____ in Chinese. [ ]
A.
speak
B.
spoken
C.
speaking
D.
speaks
【单选题】( ) refers to the system that the import of goods need to apply for a license from the department concerned , and it is not allowed to import without the license .
A.
export quota system
B.
import license system
C.
import quota system
D.
export subsidy system
【单选题】It is beyond question ()we can get the necessary import license from our authorities.
A.
which
B.
that
C.
when
D.
where
【简答题】import license
【单选题】_____ is duty or tax levied on a specific commodity when it crosses national boundaries. A. Import duty B. Export duty C. Import license D. Tariff
A.
Import duty
B.
Export duty
C.
Import license
D.
Tariff
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