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【单选题】
Na原子由3p 1 →3s 1 , 在磁场中用告分辨率仪器观察,可见到的谱线数为A.
5
B.
3
C.
12
D.
10
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【简答题】地球上七大洲的总面积约为149480000km 2 ，这个数据精确到10000000km 2 为______km 2 ．
【单选题】That bag isn’t mine. It may be __________.
A.
somebody’s
B.
somebody else
C.
somebody’s else
D.
somebody else’s
【简答题】(1)0 10000000 0000000000000000000000 (2)1 10000011 0001000000000000000000 (3)0 11111111 0000000000000000000000 (4)1 10000000 1001000000000000000000
【单选题】A reminder is something which reminds somebody______somebody or something else.
A.
from
B.
for
C.
with
D.
of
【简答题】( 10000000 )2=(________)16
【单选题】This bag isn't mine. It's ______.
A.
somebody else
B.
somebody else's
C.
else somebody's
D.
nobody else
【单选题】'Somebody' in 'somebody released some tigers' in Para. 5 refers specifically to ______.
A.
Internet providers
B.
Internet users
C.
routers
D.
hackers
【简答题】(10000000) 2 =(__) 10 。
【单选题】He is not______. He is the______ man in the streets.
A.
somebody; average
B.
somebody; common
C.
something; ordinary
D.
anyone; general
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