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【单选题】
京沪高铁的设计时速是______。A.
350 公里
B.
300 公里
C.
250 公里
D.
320 公里
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举一反三
【单选题】The term 'moderate speed' was previously interpreted（解释） as meaning a speed which would enable a vessel ______within half the range of visibility.
A.
stopping
B.
being stopped
C.
to stop
D.
to be stopped
【多选题】电子商务高速发展，目前已经渗透到各个领域，在农村电子商务领域主要有哪些应用？
A.
借助网络帮助农民学习相关种植、养殖技术
B.
在网上卖农产品
C.
将工业品卖到农村
D.
将农村旅游资源放到互联网上去展示
【单选题】The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel ______ within half the range of visibility.
A.
stopping
B.
being stopped
C.
to stop
D.
to be stopped
【单选题】The speed at which a storm center moves is the ______.
A.
speed of movement
B.
speed of advance
C.
speed of storm
D.
storm movement speed
【单选题】有关乳腺癌的诊断要点,下列哪项是错误的( )
A.
患者多为40~60岁的妇女
B.
肿块内有砂粒状钙化
C.
肿块边界清晰,无毛刺
D.
肿块与皮肤黏连,皮肤增厚、回缩,乳头内陷
E.
CT及MRI增强肿块呈快速明显强化
【单选题】Increasing the speed of a rotary pump above its rated speed will result in which of the following conditions to occur?
A.
Loss of suction
B.
Increased clearances
C.
Decreased clearance
D.
Decreased slippage
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