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【单选题】
根据《民用航空器飞行事故等级》（GB14648）的规定，重伤人员人数在（ ）人及其以上者，属一般飞行事故。A.
10
B.
20
C.
30
D.
40
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【单选题】Not until she came back ______ she was
A.
that I knew
B.
I knew
C.
did I know
D.
I have known
【单选题】She gazed at the carpet for some time. She it.
A.
watched
B.
stared at
C.
glanced at
D.
had a glimpse of
【单选题】She gazed at the immense expanse of the sea.
A.
extension
B.
very large area
C.
big gap
【简答题】She gazed at ___________ (她水中的倒影).
【单选题】She gazed at the _________ infant and smiled.
A.
concise
B.
newborn
C.
handsome
D.
stylish
【单选题】Not until John came to China what kind of country she is.
A.
did he know
B.
he knew
C.
he didn’t know
D.
he could know
【单选题】It was not until she came to see us ____ her mother was ill in bed.
A.
when we knew
B.
that did we knew
C.
that we knew
D.
that did we know
【单选题】Not until she came back ______ she was OK.
A.
that I knew
B.
I knew
C.
did I know
D.
I have known
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