SS4改电力机车共装有()个砂箱和撒砂器。A、2B、4C、6D、8
SS4改电力机车共装有()个砂箱和撒砂器。
- A、2
- B、4
- C、6
- D、8
相关考题:
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单选题A pIsub2/sub=Isub3/sub/pB pIsub2/sub=4Isub3/sub/pC pIsub2/sub=2Isub3/sub/pD pIsub3/sub=4Isub2/sub/p
判断题SS4改电力机车单节车共分五个室依次分别是Ⅰ端司机室、Ⅰ端电器室、机械室、变压器室和Ⅱ端司机室。A对B错