【单选题】在竞赛时或竞赛前后即刻存在的主观上所认知到某种危险或威胁情境的担忧属于________。
【单选题】鲐鱼中含量较高,特别是在不新鲜时含量更高并能引起食用者发生过敏中毒现象的物质是
【单选题】在下列Java的基本数据类型中,所占字节数最少的是( )
【单选题】听力原文:W: You must have enjoyed using your new camera on your trip. M: I would have, but after buying a new camera especially for that trip, I left it in the car with my friend who drove me to the airpo...
A.
He enjoyed using his new camera.
B.
He left his camera at the airport.
C.
He left his camera in his friend's car.
D.
He lost his camera on his trip.