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【简答题】
常见的高程系统有（）、正常高、和大地高程等。
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is NOT a true description of the Queen’s role?
A.
The Queen selects the Prime Minister and the Cabinet.
B.
The Queen symbolizes the tradition and unity of the British state.
C.
The Queen acts as a confidante to the Prime Minister.
D.
The Queen is the temporal head of the Church of England.
【单选题】Which of the following uses ATM as the Data Link layer protocol that’s terminated at what’s known as the DSLAM?
A.
DSL
B.
PPPoE
C.
Frame Relay
D.
Dedicated T1
E.
Wireless
F.
POTS
【单选题】Which of the following is NOT a true description of the Queen's role?
A.
The Queen symbolizes the tradition and unity of the British State.
B.
The Queen selects the Prime Ministers and the Cabinet.
C.
The Queen acts as a confidante to the Prime Minister.
D.
The Queen is the head of the Church of England.
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