问题
单项选择题
蓄电池电解液的液面高度，应高出极板（）。
A.5～10mm
B.10～15mm
C.15～20mm
D.20～25mm
答案
参考答案：B
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蓄电池电解液的液面高度，应高出极板（）。
A.5～10mm
B.10～15mm
C.15～20mm
D.20～25mm
参考答案：B
| 完形填空。 | |||
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