20.在下面一段文字横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切,逻辑严密。每处不超过l5个字。 微博没有传统媒体“守门人”过滤、垄断信息的特权,而且门槛很低,① 。但是由于人们大多使用匿名,② ,于是微博从开始时,虚假信息就一直是一个被人诟病的方面。与此同时,由于短小精悍,微博往往只有论点而缺少论证,似乎只需要情绪化的语言打动人,③ ,这就造成微博里客观18、根据下面的对话内容,填出恰当的表达,使其意思通顺、合理、结构完整。
A:____1___?
B:Yes.I want to ____2____
some tickets for the concert next week.
A:How many tickets do you want?
B:Three.
A:___3____ performance(表演)do
you like,Friday evening or Sunday afternoon?
B:Sunday afternoon will be fine.
A:Let me see.Ah,there happens to be ____4____ tickets left for Sunday's
concert.
B:That's fine.I'll take them
all.How much are they?
A:30 dollars each,90 dollars in
all.
B:Here is 100 dollars.
A:OK.____5____,your tickets and the change.
B:Thank you.