在TCP/IP网络模型中，网际层传送的数据单位是()。
A、比特C
A、B、C、 D 分别对应物理层、数据链路层、网络层和传输层
Whatactually__________agoodangle—oragoodselfieoverall—isrootedinwhatweconsiderbeautiful.
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
—Canyoutakethedayofftomorrow?
—Well，I‘allhavetoget（）frommyboss.
Ifyourcar_____anyattentionduringthefirst12months,takeittoauthorizeddealer.
