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【单选题】
新中国成立以来第一次科学技术大会提出了()。A.
向科学进军
B.
自力更生
C.
独立自主
D.
向科学迈进
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举一反三
【单选题】The World Expo 2010 is being held at a time the world is looking for a new kind of balance between nature and cities．
A.
when
B.
where
C.
which
D.
that
【简答题】维生素B2吸收部位在( ),若( )服用则胃排空过快,降低了生物利用度。
【单选题】听力原文： The World Health Organization warns between 25 and 35 percent of the world population could be affected by a human influenza pandemic, but the WHO says most people would survive. Health experts ...
A.
draw a map of affected area.
B.
make a plan for fighting against bird flu.
C.
make a combat.
D.
find ways to prevent human flu.
【简答题】在数字系统中,根据电路逻辑功能的不同,数字电路可分为 逻辑电路 和 逻辑电路 两大类。
【单选题】For an upright vessel, draft is the vertical distance between the keel and the ______.
A.
waterline
B.
freeboard deck
C.
plimsoll mark
D.
amidships section
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