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【单选题】
图示电路,已知晶体管 ,忽略 U BE ,如要将集电极电流 I C 调整到 1.5 mA , R B 应取( )。A.
480k W
B.
120k W
C.
240k W
D.
360k W
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举一反三
【简答题】n. 习惯,惯例;风俗;关税
【简答题】习俗,惯例,会议 n.
【简答题】Listen to a passage and choose the best answer from the four choices provided for each question. Words and expressions Gricean Maxims 格莱斯定律 convention /k ə n ˈ ven ʃə n/ n. 习俗,惯例 assumption / əˈ s ʌ...
【简答题】c__________ n. 习俗,惯例;会议,大会
【单选题】I want to be a volunteer some day. I feel _____ is my duty to help others.
A.
this
B.
that
C.
them
D.
it
【单选题】—_________ foreigners visit Sun Island every year. —Oh, I also want to visit it some day. [ ]
A.
Thousands of
B.
Two thousands
C.
Two thousand of
D.
Two thousands of
【简答题】convention n. behavior and attitudes that most people in society think are normal and right 习俗;惯例 让孩子们一起玩耍会教会他们社会习俗,比如如何与人分享。 译:___________________________ ______________________________________ 按照惯例,...
【简答题】n. 大会,公约;惯例,习俗
【简答题】0205P59Z 旋转式货架的特点?
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