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【单选题】
塑料板材应有出厂合格证和使用说明书,超过( )个月的产品,应取样检验合格后方可使用。
A.
1
B.
2
C.
3
D.
4
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【单选题】That room is 20 square meters. This room is three times as .
A.
much
B.
many
C.
large
D.
larger than
【单选题】This room is used ______ a reading room. [     ]
A.
as
B.
for
C.
by
D.
in
【多选题】机器人诊断准确率远高于人类的原因包括()。
A.
记忆能力强
B.
可重复性高
C.
不会疲劳
D.
传感器复杂
【单选题】This room is for women() .
A.
typically
B.
exclusively
C.
precisely
D.
generally
【单选题】晶体三极管工作在放大区的条件是
A.
发射结、集电结均正偏
B.
发射结正偏、集电结反偏
C.
发射结反偏、集电结正偏
D.
发射结、集电结均反偏
【单选题】三极管工作在放大区的条件是( )
A.
发射结反偏,集电结正偏
B.
反射结反偏,集电结反偏
C.
反射结正偏,集电结反偏
D.
发射结正偏,集电结正偏
【单选题】三极管工作在放大区的条件是()。
A.
发射结和集电结均反偏
B.
发射结和集电结均处于正偏
C.
发射结正偏,集电结反偏
【单选题】I apologize if I ______ you, but I assure you it was unintentional.
A.
offend
B.
should have offended
C.
had offended
D.
might have offended
【简答题】三极管工作在放大区的条件是( )。
【单选题】This room is ______ the room upstairs.
A.
bigger than
B.
more bigger than
C.
bigger then
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