题目内容
以下哪本书中提出了华夏正统的说法？
查看答案
搜索结果不匹配？点我反馈
更多问题
Socializing plays an important role in our life since we’re social creatures. It 1) _________our mood when we talk with friends or take part in planned activities. It also helps us know ourselves better through the 2) _________ of others. In addition, it gives us many 3) _________ opportunities to meet new people. What’s more, it leaves us good memories and rich experiences when we 4) _________ with friends or even non-work related people. In a word, socializing is 5) _________ important. We should try to participate in planned activities, join clubs and parties and socialize with friends 6) _________ to make us happier.
按照科技论文主体部分的结构，完成一篇小论文，自动生成目录。提交Word版本。
【单选题】衡量液体对母材润湿能力的大小,可用液相与固相接触时的接触夹角θ的大小来表示。钎焊时,钎料的润湿角应( )
【多选题】影响钎料润湿作用的因素:①钎料和母材成分: 如液态钎料与母材相互溶解或形成化合物,则润湿较好。②钎焊温度--利于润湿。太高,易使钎料流散、溶蚀或晶粒粗大。③表面氧化物--妨碍润湿。④母材表面状态--粗些好。⑤钎剂--适当的钎剂有良好作用。
微信支付 
支付宝支付