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【单选题】
设BJT开启电压是0.5V,如果Vc=12V,Vb=4V,Ve=3.6V,则三极管工作在A.
放大区
B.
饱和区
C.
截止区
D.
不确定
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【单选题】Helen was much kinder to heryoungest son than to the others, ,of course , made the others envy him .
A.
who
B.
that
C.
what
D.
which
【单选题】下列选项中不属于自动控制能够为企业带来的好处的是()。
A.
自动控制比较不容易被绕过
B.
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C.
自动信息系统可以提高管理层对企业业务活动及相关政策的监督水平
D.
自动控制可以更有效地应对不常出现的或需要职业判断的业务
【简答题】How much is the expense that Helen estimated? ______ .
【单选题】Helen was much kinder to her youngest child than she was to the others, ______ of course, made the others jealous.
A.
who
B.
what
C.
that
D.
which
【简答题】Helen was much kinder to her youngest son than to the others, , of course , made the others envy him . A. who B. that C. what D. which
【简答题】当风速一定时,水平地转偏向力的大小为:低纬( )于高纬
【单选题】Helen was much kinder to her younger child than she was to the others, ______, of course, made the others jealous.
A.
with
B.
that
C.
what
D.
which
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