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【单选题】
在高频通道中,( )可以与耦合电容器相配合,将载波信号耦合到馈线上去,并抑制各种干扰信号进入载波机。A.
A . 高频阻波器
B.
耦合滤波器
C.
结合滤波器
D.
阻波器
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举一反三
【单选题】Statistics show that house prices in the last 2 years have risen they had expected.
A.
twice as much as
B.
as much as twice
C.
as twice much as
D.
as much twice as
【单选题】Oil prices have risen by 32 percent since the start of the year, a record us $ 57.65 a barrel on April 4. [ ]
A.
have reached
B.
reaching
C.
to reach
D.
to be reaching
【单选题】______ the house prices have risen sharply, the number of buyers is as great as ever.A．Despite t
A.
35. ______ the house prices have risen sharply, the number of buyers is as great as ever. A．Despite the fact that
B.
In spite of what
C.
Regardless of
D.
Contrary to
【单选题】Prices of houses _______ sharply in the past decade. [ ]
A.
rise
B.
are rising
C.
have risen
D.
rose
【简答题】请根据材料5和材料6，写一份简短的汇报材料，分析云南、山西两省的做法对河北建设文化强省提供了哪些重要启示，以供领导决策时参考。
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