InAugust1977,asatellitetogatherdataaboutthe10millionblackholeswhicharethoughttobeintheMilkyWay.
B
暂无解析
Hetookhisumbrellawithhimlestit____(rain).
Somestudentsfromaskingquestionsinclass.（）
有人提出管理过程就是决策过程。翻译
_______(safe)needstobeimprovedontherailwaysinthatcountry
Attheendoftheconference,allthe_(participate)wereaskedtofilloutaquestiolmaire
