题目

单词拼写(每空一词)【1】Thanksgiving Day is one of the most important U. S. family c______ (庆祝).【2】He was a______ the gold medal for being the fastest runner. (授予)【3】А b______ diet is essential for teenagers. (平衡)【4】His English was so l______ that he couldn’t even tell the foreign friend where he was from. (有限)【5】This kind of fruit is of great b______ to your health. (有益)【6】Smoking is not p______ in our school. (允许)【7】I got caught in the traffic jam, so I missed the first s______(场) of the play.【8】U______(不像) most people in 某三价金属R与稀硫酸反应，生成N克氢气，金属质量减少W克，则该金属的原子量为（ ）A．W/3NB．3W/NC．W/ND．3N/W