皮皮学，免费搜题
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搜题
【单选题】
在卫星上加装变频装置的目的是()。A.
以实现对信号的放大
B.
以实现收发信号频率的转变以防止收发信号相互干扰
C.
用于控制卫星使其进入最佳的工作及运行状态和定点位置
D.
为了保证收、发信号间的良好隔离，防止信号相互干扰
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皮皮学刷刷变学霸
举一反三
【单选题】People are very ____ about the ____ football matches. [ ]
A.
exciting; exciting
B.
excited; excited
C.
exciting; excited
D.
excited; exciting
【单选题】Harry Potter is an ________ book. I am ________ about the movies, too. [ ]
A.
excited, excited
B.
excited, exciting
C.
exciting, exciting
D.
exciting, excited
【单选题】Most students got _____ about the _____ news. [ ]
A.
excited; excited
B.
exciting; exciting
C.
excited; exciting
D.
exciting; excited
【单选题】The World Cup is coming. We are all ______ about the _______ match. [ ]
A.
excited; excited
B.
exciting; excited
C.
excited; exciting
D.
exciting; exciting
【简答题】Forbes is about as excited as ______.
【简答题】保险公估合同是（ ）。
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