作业帮1.______a seven-second delay between transmission of the signal and when it can be heard on computerA.It is B.There is C.It has been D.There has been2.You _________tell him.He is fully aware of the danger.A.mustn't B.haven't to C,don't have to D.can;
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1.______a seven-second delay between transmission of the signal and when it can be heard on computerA.It is B.There is C.It has been D.There has been2.You _________tell him.He is fully aware of the danger.A.mustn't B.haven't to C,don't have to D.can;
1.______a seven-second delay between transmission of the signal and when it can be heard on computer
A.It is B.There is C.It has been D.There has been
2.You _________tell him.He is fully aware of the danger.
A.mustn't B.haven't to C,don't have to D.can;t
3.Hence the expansion cidtionary definitions descends into progessive generality,____a weaker and weaker semantic relationship with the original word.
A.displaying B.displayed C,to diaplay D.to be diaplayed
1.______a seven-second delay between transmission of the signal and when it can be heard on computerA.It is B.There is C.It has been D.There has been2.You _________tell him.He is fully aware of the danger.A.mustn't B.haven't to C,don't have to D.can;
1 选B 意思：信号传导、在电脑上听见声音,这两个之间有有7秒种延迟
也就是说 信号开始传导7秒之后,才能听到声音
2 选B 意思：不用你来告诉他,他自己知道身处危险之中
3 选A 主语 dcidtionary definitions 谓语descends into
宾语generality 时间状语Hence the expansion
伴随状语 displaying a weaker and weaker semantic relationship with the original word.