单项选择题
完全胃肠外营养是指( )
A.通过静脉输入全部营养 B.从胃管内补其不足
C.少量口服 D.补充要素膳
E.添加匀浆液
A.通过静脉输入全部营养
B.从胃管内补其不足
C.少量口服
D.补充要素膳
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多项选择题
“三北”防护林体系中“三北”是指()。
A.东北
B.华北
C.西北
D.长城以北
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单项选择题
As we have only moderate means at hand, the tie-up of funds for ______ three to four months indeed presents a problem to us. A.as soon as B.as far as C.as long as D.as well as
A.
B.as
C.as
D.as
E.as
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