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【多選題】
宇宙飛船進(jìn)入一個(gè)圍繞太陽(yáng)運(yùn)動(dòng)的近乎圓形的軌道上運(yùn)動(dòng)，如果軌道半徑是地球軌道半徑的9倍，那么宇宙飛船繞太陽(yáng)運(yùn)行的周期是（ ）
A.
3年
B.
9年
C.
27年
D.
81年
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舉報(bào)參考答案：
舉一反三
【單選題】As we all know, an island is a piece of land__________________ by water.
A.
surround
B.
surrounding
C.
surrounded
D.
to be surrounded
【單選題】The engineers are so busy that they have zero time for outdoor sports activities, _________ they have the interest.
A.
so that
B.
because
C.
even if
D.
as if
【單選題】In April, 2009, President Hu inspected the warships in Qingdao, the 60th anniversary of the founding of the PLA Navy.
A.
marking
B.
marked
C.
having marked
D.
being marked
【單選題】His mother gave me quite a few magazines, _________________ is here for you to read this evening.
A.
of that one
B.
of one which
C.
which one of
D.
of which one
【單選題】Don’t you think that______________ is no use promising without doing?
A.
this
B.
that
C.
it
D.
what
相關(guān)題目：
【單選題】As we all know, an island is a piece of land__________________ by water.
A.
surround
B.
surrounding
C.
surrounded
D.
to be surrounded
【單選題】The engineers are so busy that they have zero time for outdoor sports activities, _________ they have the interest.
A.
so that
B.
because
C.
even if
D.
as if
【單選題】In April, 2009, President Hu inspected the warships in Qingdao, the 60th anniversary of the founding of the PLA Navy.
A.
marking
B.
marked
C.
having marked
D.
being marked
【單選題】His mother gave me quite a few magazines, _________________ is here for you to read this evening.
A.
of that one
B.
of one which
C.
which one of
D.
of which one
【單選題】Don’t you think that______________ is no use promising without doing?
A.
this
B.
that
C.
it
D.
what
參考解析：
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