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【单选题】
Jack _____ over five lessons by seven o'clock. Then he ______ a rest.
A.
went...took
B.
went...had taken
C.
had gone...took
D.
had gone...had taken
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参考答案:
举一反三
【单选题】AD0对象模型包括5个对象,分别是Connection、Command、Field、Error和( )。
A.
Database
B.
Workspace
C.
RecordSet
D.
DBEngine
【单选题】It was last Sunday she met her old friend in the supermarket.
A.
while
B.
which
C.
that
D.
since
【单选题】It was last Sunday ______ we saw one of my old friends in the park.
A.
which
B.
that
C.
where
D.
who
【单选题】It was__last Sunday morning. It rained__.
A.
snowy, heavy
B.
snowing, heavy
C.
snowy, heavily
【多选题】下列哪些选项属于淘宝旺铺中网店页面包括的元素?
A.
店招
B.
导航
C.
轮播海报
D.
宝贝分类
【单选题】—So when did you meet Joan? —It was last Sunday _______ she came to visit my sister.
A.
that
B.
since
C.
when
D.
Before
【简答题】测得工作在放大电路中两个晶体管的三个电极电流如下图所示, 1判断它们各是NPN管还是PNP管,在图中标出e,b,c极; 2估算晶体管的 α 和 β 值。
【单选题】测得工作在放大电路中两个晶体管的三个电极电流如下图所示,三个电极从左到右依次为( )
A.
B,C,E
B.
E,B,C
C.
C,B,E
D.
B,E,C
【单选题】测得工作在放大电路中两个晶体管的三个电极电流如图所示 ,则( )。
A.
中间脚为集电极
B.
中间脚为发射极
C.
中间脚为基极
D.
不确定
【单选题】It was last Sunday___I came across Mr. Brown.
A.
before
B.
since
C.
that
D.
when
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