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【单选题】
下列协议中()协议的数据可以受到IPSec的保护
A.
tcp  udp  ip
B.
arp
C.
rarp
D.
以上皆可能
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【单选题】The Mona Lisa, ______ in Italy, is now in the Louvre, a museum in Paris.
A.
who painted
B.
who has painted
C.
which painted
D.
which was painted
【单选题】化合物 CH 3 CH 2 CHBrCH 3 发生消去反应的主产物是
A.
CH 3 CH=CHCH 3
B.
CH 3 CH 2 CH=CH 2
C.
(CH 3 ) 2 C=CH 2
D.
CH3C = CCH3
【单选题】蛛网膜下腔出血最常见的病因是
A.
血液系统疾病
B.
先天性颅内动脉瘤
C.
钩端螺旋体所致脑动脉炎
D.
烟雾病
E.
心脏病
【单选题】蛛网膜下腔出血最常见的病因是
A.
脑外伤
B.
血液疾病
C.
抗凝治疗
D.
脑血管畸形
【单选题】Right now there is a sale of 19th-century European paintings and sculpture in the museum.
A.
photographs
B.
images
C.
statues
D.
stone paintings
【单选题】The version _______ to be closest to the author’s original now belongs to a national museum in Paris.
A.
was thought
B.
thought
C.
is thought
D.
thinking
【单选题】The version _____ to be closest to the author’s original now belongs to a national museum in Paris.
A.
is thought
B.
thinking
C.
being thought
D.
thought
【单选题】The house _____ Mozart composed “The Magic Flute” is a museum now.
A.
which
B.
when
C.
where
D.
that
【单选题】唐代诗人皮日休在《汴河怀古》中这样写道:“尽道隋亡为此河,至今千里赖通波。若无水殿龙舟事,共禹论功不较多。”作者认为大运河开凿的最主要影响是( )
A.
兴修水利促进农业生产发展
B.
激化社会矛盾导致隋朝灭亡
C.
促进了南北交流和经济发展
D.
奠定了唐朝盛世局面的基础
【单选题】The house ____ Lu xun used to live in is now a museum.
A.
that
B.
where
C.
which
D.
there
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