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【单选题】
若2,6,x构成等比数列,则x=A.
17
B.
18
C.
19
D.
20
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举一反三
【单选题】Which of the following would be the most appropriate title for the text?
A.
The Earliest Memories
B.
Earliest Memories, Good or Bad
C.
The Power of Earliest Memories
D.
How to Recall Earliest Memories Better
【单选题】典型慢性肺源性心脏病应具备哪一项X线表现:
A.
肺动脉高压、右室大
B.
肺淤血、右室大、左房大
C.
肺充血、左、右室大
D.
肺少血、右室大、主动脉宽
E.
肺水肿，心脏普遍大
【单选题】典型慢性肺源性心脏病应具备哪一项X线表现?( )
A.
肺动脉高压、右室大
B.
肺瘀血、右室大、左房大
C.
肺充血、左、右室大
D.
肺少血、右室大、主动脉宽
E.
肺水肿，心脏普遍大
【单选题】Which is the best title of this passage?
A.
The Earliest People in North America.
B.
The Earliest Immigrants to North America.
C.
The People of the United States.
D.
Europeans Were the Earliest People Coming to the North America.
【单选题】Which is the best title of this passage?
A.
The Earliest People in North America．
B.
The Earliest Immigrants to North America．
C.
The People of the United States．
D.
Europeans were the Earliest People Coming to the North America．
【简答题】红移现象
【简答题】红移现象
【简答题】Where and when was the earliest daily newspaper started? It was started in __________in__________.
【简答题】(3分)红移现象(red transition)
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