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【单选题】
在滚子式门架中,一般内外门架立柱的断面形状及其组合有( )种形式。A.
2
B.
3
C.
4
D.
5
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反馈参考答案：
举一反三
【单选题】Only by keeping down costs will American maintain its competitive______ over other countries
A.
interest
B.
favour
C.
advantage
D.
profit
【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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