Between the side frames on a vessel, support for the deck beams is provided by（）. ["stanchion","brackets","web frames","deck stringer"]
《中国共产党章程》规定，（）是我们党执政兴国的第一要务。 ["A.发展","B.教育","C.开放","D.改革"]
与营利性组织相比，非营利组织在进行管理时面对的制约：（）。 ["只来自社会","更少","只来自政府","更多"]
Bilge keels are fitted on ship to（）. ["assist in drydock alignment","improve the vessel's stability","protect the vessel from slamming against piers","reduce the rolling of the vessel"]
云台山海清寺阿育王塔的特点是什么？
木材的腐蚀原因包括什么？
