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【单选题】
若真空度为0.2个大气压,则该处的绝对压力为( )个大气压A.
0.2
B.
0.8
C.
2
D.
1.2
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反馈参考答案：
举一反三
【简答题】稳压电源的性能指标包括______________和_____________。
【简答题】The word “devastating“ in the last paragraph could be best replaced by
【简答题】The word “devastating” (Line 3, Paragraph 2) is closest in meaning to _____ ［A］ destructive ［B］ regretful ［C］ frustrating ［D］ terrible
【简答题】A) devastate B) devastating C) devastated D) devastation
【单选题】During the Old English Period, who invaded Britannia (Great Britain)?
A.
All of These
B.
The Danes / Scandinavians
C.
The Angles and the Saxons
D.
The Jutes
【单选题】下列表示为无极加强接点继电器,前后线圈阻值都是 180 Ω的是 ( )
A.
JWJXC — 360
B.
JZXC — 480
C.
JWJXC-180
D.
JWXC-180
【单选题】The word 'devastating' in Paragraph 2 could be explained as ______.
A.
desperate
B.
misfortunate
C.
destructive
D.
catastrophic
【简答题】he word 'devastating' in the last paragraph could be best replaced by
【单选题】The word 'devastating' in the last paragraph could be best replaced by ______.
A.
frustrating
B.
damaging
C.
defeating
D.
worrying
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