皮皮学，免费搜题
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搜题
【单选题】
两个零件在同一方向上只能有 个接触面和配合面。A.
二
B.
一
C.
三
D.
四
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皮皮学刷刷变学霸
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【简答题】Later, engineers (manage) to construct railways in a system of deep tunnels ( 隧道 ), which became known as the Tube.
【简答题】出租车驾驶员要自觉遵守交通法规，做到文明驾驶，（），树立良好的职业道德。
【简答题】Later, engineers ____ (manage) to construct railways in a system of deep tunnels (隧道), which became known to the tube.
【简答题】(2017全国卷2)Later, engineers _________(manage) to construct railways in a system of deep tunnels(隧道), which became known as the Tube.
【简答题】Later, engineers ____________ (manage) to construct railways in a system of deep tunnels, which became known as the Tube.
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