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【单选题】
等物质的量的 N 2 和 O 2 在室温下于同一容器中混合,则此时混合气体的压力为( )A.
其中某一组分单独存在时的压力
B.
每种气体单独存在时的压力之积
C.
每种气体单独存在时的压力之和
D.
由理想气体状态方程式计算
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皮皮学刷刷变学霸
举一反三
【单选题】Only by keeping down costs will America maintain its _________ advantage over other countries.
A.
competitive
B.
competent
C.
compliant
D.
compatible
【单选题】Only by keeping down costs will this company ________ its competitive advantage over other ones.
A.
maintain
B.
preserve
C.
protect
D.
conserve
【单选题】Only by keeping down costs will America maintain its ________ advantage over other countries.
A.
compete
B.
competitive
C.
competitior
D.
competition
【单选题】Only by keeping down costs will America maintain its _________ advantage over other countries.
A.
competitive
B.
competition
C.
competitor
D.
contestant
【单选题】Only by keeping down costs will America maintain its ______ advantage over other countries.
A.
objective
B.
competitive
C.
alternative
D.
respective
【单选题】药物吸收是指
A.
药物从给药部位进入体循环
B.
药物在机体内发生化学结构的变化
C.
药物在机体内发生化学结构的变化及由体内排出体外
D.
药物从血液向组织器官转运
E.
原型药物或其代谢物由体内排出体外
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