风对大气污染物既有输送扩散作用，又有稀释作用。 [ ]_爱下问搜题

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问题判断题

风对大气污染物既有输送扩散作用，又有稀释作用。 [ ]

答案

参考答案：对

完形填空

At an airport I overheard a father and daughter in their last moments together．They had announced her 54 ’s departure．Standing near the door, he said to his daughter: “I love you, I wish you 55 ．”She said: “Daddy, our life together has been more than enough．Your love is all I ever needed．I wish you enough, too, Daddy．” They kissed good-bye and she left．
He walked  56  toward the window where I was seated．I tried not to intrude （侵犯） on his  57 , but he welcomed me in by asking: “Did you ever say good-bye to   58  knowing it would be forever?”“Yes, I have,” I replied．“ 59  me for asking, but why is this a forever good-bye?” I asked．“I am old and she lives much too far away．I have   60  ahead and the reality is, her next trip back will be for my funeral,” he said．“When you were saying good-bye I heard you say, ‘I wish you enough．'' May I ask what that means?”
He began to smile．“That is a wish that has been handed down from other 61 ．My parents used to say it to everyone．” He paused for a moment, looking up as if trying to remember it in detail, he 62 even more．“When we said ‘I wish you enough'', we wanted the other person to have a life filled with enough good things to sustain them,” he continued and then 63 toward me, he shared the following 64 he were reciting it from memory．
“I wish you enough sun to keep your attitude 65 ．I wish you enough rain to appreciate the sun more．I wish you enough happiness to keep your spirit alive．I wish you enough pain so that the 66 joys in life appear much bigger．I wish you enough gain to satisfy your 67 ．I wish you enough loss to appreciate all that you 68 ．I wish enough “Hello”s to get you 69  the final “Good-bye．”He then began to sob （哽咽） and walked away．
It is said that “It takes a/an 70 to find a special person, an hour to 71 them, a day to love them, 72 then an entire life to 73 them．”

C．generations

C．even though

D．as a result

问答题简答题

简述扩频技术的基本类型。