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【简答题】
移动信道是恒参信道还是随参信道？
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皮皮学刷刷变学霸
举一反三
【简答题】The three types of energies that make up the specific energy, e. include ______, and ______
【简答题】Agency is classified into three types: ordinary agency, general agency and ______.
【多选题】Basically, there are three types of computers, they are ___.
A.
mainframe. computer
B.
minicomputer
C.
microcomputer
D.
macrocomputer
【简答题】如图，AA 1 ，BB 1 ，CC 1 不共面，BB 1 //AA 1 且BB 1 =AA 1 ， CC 1 //AA 1 且CC 1 =AA 1 . 求证： ABC A 1 B 1 C 1 。
【简答题】答案aa、bb、cc、dd
【简答题】已知共线点(AA′，BC)＝(BB′，CA)＝(CC′，AB)＝－1，求证：(AA′，B′C′)＝(BB′，C，A′)＝－1．
【简答题】Describe the three main types of language tests.
【单选题】There are three types of volcanoes active volcanoes, dormant volcanoes and ______ volcanoes.
A.
extinguished
B.
extinct
C.
distinct
D.
instinctive
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