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阅读下列材料，回答问题． 材料一：第六次铁路大提速于2007年4月18日正式实施，预计提速后铁路客运能力增加18%，货运能力增加12%．第六次铁路大提速范围覆盖17个省市，在京哈、京沪、、京九、、浙赣、、、胶济等干线展开．时速120千米及以上线路延展里程达到2.2万千米，比第五次大提速增加6000千米．其中，时速160千米及以上提速线路延展里程达1.4万千米，分布在京哈、京沪、、京九、京九、等干线；时速200千米线路延展里程达到6003千米，分布在京哈、京沪、等干线，其中京哈、、京沪、胶济线部分区段时速达250千米． 材料二：中国铁路干线示意图． （1）提速后部分区段达到250千米的铁路干线有______ A、①②⑤⑧B、①②④⑨ C、①②③⑩D、①②③④ （2）提速后半径在500千米左右的城市之间实现了“至”，1200千米-1500千米的实现了“夕发朝至”，2000千米-2500千米的可以“一日到达”．下面铁路干线可“夕发朝至”、发挥“旅馆列车”效应的是______ A、②③B、②④ C、③④D、①④ （3）促使我国火车不断提速的主导因素是______ A、自然因素     B、经济因素      C、科技因素     D、社会因素 （4）图中字母表示浙赣线的是______ A、E     B、F    C、G    D、H （5）第六次铁路大提速在京哈、京沪、、京九、、浙赣、、、胶济等干线展开的主要原因是______ ①气候适宜  ②人口众多  ③经济发达  ④运力紧张  ⑤环境优美  ⑥市场需求量大 A、①②③④B、①②⑤⑥C、②③④⑤D、②③④⑥
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参考答案：
举一反三
【单选题】Birds, _______ or familiar, were popular in Rome.
A.
historic
B.
exotic
C.
alcoholic
D.
erotic
查看完整题目与答案
【单选题】Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
A.
which
B.
what
C.
when
D.
how
查看完整题目与答案
【单选题】肠梗阻 的超声表现是 ( )
A.
肠管扩张伴积气、积液
B.
肠蠕动异常
C.
可见线状黏膜皱襞，呈琴键征
D.
腹腔积液
E.
以上都是
查看完整题目与答案
【单选题】It can be inferred from the passage that the Archaeopteryx were classified as birds on the basis of
A.
imprints of bones
B.
imprints of feathers
C.
the neck structure
D.
skeletons
查看完整题目与答案
【单选题】The yellows used to paint the sun were only faintly _________ from the other yellows used throughout the whole day.
A.
disproved
B.
differentiated
C.
discriminated
D.
discerned
查看完整题目与答案
【单选题】The birds were very friendly to Bill Pochmerski, one of the volunteer observers, because he wore a neutral mask.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】下列哪项是小肠梗阻的超声表现
A.
驼峰征
B.
鱼刺征
C.
假肾征
D.
靶环征
E.
越峰征
查看完整题目与答案
【单选题】妊娠高血压疾病最基本的病理变化是 :
A.
胎盘绒毛膜退行性变化
B.
全身小动脉痉挛
C.
水纳潴留
D.
底蜕膜出血
E.
肾小管重吸收功能降低
查看完整题目与答案
【单选题】We rented the old house on the ______ that the landlord would paint it, but we were disappointed later.
A.
reassurance
B.
assurance
C.
assumption
D.
acknowledgement
查看完整题目与答案
【单选题】妊娠高血压疾病最基本的病理变化是:
A.
胎盘绒毛膜退行性变化
B.
全身小动脉痉挛
C.
水钠潴留
D.
底蜕膜出血
E.
肾小管重吸收功能降低
查看完整题目与答案
相关题目：
【单选题】Birds, _______ or familiar, were popular in Rome.
A.
historic
B.
exotic
C.
alcoholic
D.
erotic
查看完整题目与答案
【单选题】Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
A.
which
B.
what
C.
when
D.
how
查看完整题目与答案
【单选题】肠梗阻 的超声表现是 ( )
A.
肠管扩张伴积气、积液
B.
肠蠕动异常
C.
可见线状黏膜皱襞，呈琴键征
D.
腹腔积液
E.
以上都是
查看完整题目与答案
【单选题】It can be inferred from the passage that the Archaeopteryx were classified as birds on the basis of
A.
imprints of bones
B.
imprints of feathers
C.
the neck structure
D.
skeletons
查看完整题目与答案
【单选题】The yellows used to paint the sun were only faintly _________ from the other yellows used throughout the whole day.
A.
disproved
B.
differentiated
C.
discriminated
D.
discerned
查看完整题目与答案
【单选题】The birds were very friendly to Bill Pochmerski, one of the volunteer observers, because he wore a neutral mask.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【单选题】下列哪项是小肠梗阻的超声表现
A.
驼峰征
B.
鱼刺征
C.
假肾征
D.
靶环征
E.
越峰征
查看完整题目与答案
【单选题】妊娠高血压疾病最基本的病理变化是 :
A.
胎盘绒毛膜退行性变化
B.
全身小动脉痉挛
C.
水纳潴留
D.
底蜕膜出血
E.
肾小管重吸收功能降低
查看完整题目与答案
【单选题】We rented the old house on the ______ that the landlord would paint it, but we were disappointed later.
A.
reassurance
B.
assurance
C.
assumption
D.
acknowledgement
查看完整题目与答案
【单选题】妊娠高血压疾病最基本的病理变化是:
A.
胎盘绒毛膜退行性变化
B.
全身小动脉痉挛
C.
水钠潴留
D.
底蜕膜出血
E.
肾小管重吸收功能降低
查看完整题目与答案
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