單項(xiàng)選擇題
A.0.7~1.2B.1~1.5C.1~3D.2~4
A.朝左B.朝前C.傾斜D.朝上
A.50-60B.90-100C.70-80D.20-30
A.5~10B.10~35C.25~45D.50~60
A.10?20B.50?60C.150?200D.180?220
A.NB.MC.SPD.P
A.酸B.堿C.中D.弱酸
A.70%-80%B.90%-95%C.98%D.100%
A.半光亮鎳鍍B.光亮鎳鍍C.沖擊鎳鍍D.鎳封閉鍍
A.3~4B.3.8~4.6C.4~4.5D.5~5.5
A.大電流B.小電流C.大電壓D.小電壓