XY一4型钻机变速箱换挡操作时,必须将原挡位拨到()位置,才能重新换挡。
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下列不属于《环境保护法》规定的“三同时”制度的是()。
A. 同时设计
B. 同时施工
C. 同时验收
D. 同时投产
根据词组的整体功能和成分功能之间的关系,可将词组分为()、()两种。
The Charterers to have option of using Owners’ bunker contracts. This sentence indicates that().
A. The Charterers should sing new bunker contract with oil chandlers
B. The Charterers can use the bunker contracts signed by the Owners with oil chandlers
C. The Charterers shall not sign bunker contracts with oil chandlers
D. The Charterers shall sign bunker contracts with oil chandler
文章是赞美北京秋天的浓色、深味,为何两次写到南国之秋?