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,内容贴切,逻辑严密,每处不超过15个字。
春联也叫对联、门对,是悬挂或张贴在楹柱门户之上的联语。____:最初人们以桃木刻成人形悬于门以辟邪,后来蜕化为在桃木上画神以庇门户。春联的另一个源头可能是春贴:古人立春时多写“宜春”的帖子,日后渐成习俗。桃木色红,汉人认为红色辟邪、吉利,____。特殊的是庙宇用黄纸,丧家守制用白纸。现在春节张贴春联,____,还想营造一种喜庆的气氛。
为下列问句选择合适的应答语。
A: It was bad.
B: I stayed at home all day.
C: Yes, it was.
D: No, we didn’t.
E: He visited his uncle.
①Was the magazine interesting? ____
②What did Mark do yesterday? ____
③How was your stay at the Holiday Hotel? ____
④Where did you go yesterday? ____
⑤Did you play basketball last weekend? ____
一个不透明的袋子里装有50个黑球,2个白球,这些球除颜色外其余都完全相同.小明同学做摸球试验,将球搅匀后,从中随机摸出一个球,记下它的颜色后放回袋中,然后再重复进行下一次试验,当摸球次数很大时,摸到白球的频率接近于( )