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婴儿充血性心力衰竭的病因以下哪些是正确的：( ) A．以先天性心血管畸形最多见 B．病毒性或中毒性心肌炎亦为重要原因 C．川崎病重要原因 D．心内膜弹力纤维增生症也可见到 E．以上都不是
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【单选题】The answer depends on what kind of system is ultimately adopted.(47)The first is a special-purpose lane system, in which certain lanes are reserved for automated vehicles. The second is a mixed traffi...
A.
An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles.
B.
Vehicles traveling on it are assigned different lanes according to their destinations.
C.
And once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax.
D.
What might driving on an automated highway be like?
E.
One method would use a special onramp(入口引道).
F.
Two distinct types are on the drawing board.