NS断路器如何实现插入式或抽出式安装?
参考答案:
在普通断路器的基础上,增选插入式套件或抽出式套件即可,请注意,带Vigi模块和不带Vigi模块的套件不同。
全口义齿的基托边缘位置不应位于()
A.前庭沟底移行皱襞
B.远中颊角区
C.舌侧翼缘区
D.磨牙后垫前缘
E.腭小凹后2mm
—How about ____ controlled breeding programme the US government began to save the red wolf?
—I should say it was ____ success, you see its number has increased
A.a ; a
B.the; a
C.a;不填
D.the ; 不填