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【单选题】
原则上导柱、导套的安装()A.
导套在下模、导柱在上模
B.
导柱在下模、导套在上模
C.
导柱、导套均在上模
D.
以上三种均可
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A.
意识模糊
B.
口唇樱桃红色
C.
瞳孔散大
D.
四肢无力
E.
呼吸衰竭
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