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【多选题】
溶剂浸提法包括( )。A.
渗透
B.
溶解
C.
析出
D.
扩散
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【简答题】(2013·天津，6)We have launched another manmade satellite，________is announced in today's newspaper. A．that B．which C．who D．what
【单选题】We have launched another man-made satellite, ______ is announced in today’s newspaper.
A.
that
B.
which
C.
who
D.
what
【单选题】Recently our community has launched a campaign among all the residents , ____ we are called upon to do our little but to prevent the worsening environment.
A.
where
B.
which
C.
as
D.
when
【简答题】简述膳食纤维的生理功能。 2. 平衡膳食宝塔分几层?怎样正确应用平衡膳食宝塔? 3. 食物中毒的处理原则。 4. 平衡膳食的基本要求。
【单选题】A big step _____ to strengthen China's health care systems since we launched an effort in 2008. [ ]
A.
has been taken
B.
is being taken
C.
was taken
D.
had been taken
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