题目:
阅读下面短文,根据以下要求:(1)汉语提示;(2)首字母提
示;(3)语境提示,在每个空格内填入一个适当的英语单词,
所填单词要求意义准确、拼写正确.
The college entrance exam is on the way and all the teachers
work very hard, encouraging us to build 1 our confidence
and inspiring us to i 2 our studies. Whenever we meet
with difficulties, they are r 3 to come to our help. Meanwhile,
our school also 4 (提供)great help for us students, for exampie.
the library stays 5 in the evenings and even on the weekends.
At home,our parents take good care of 6 so that we can always
be full of energy. I'm very grateful for the 7 (努力)of our parents
and teachers. I'm 8 (决心)to try my best to prepare for the exam.
I am sure that w 9 their timely help I'll be able to achieve my goal
and be a useful person of our society in the near f 10 .
答案:
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下面是错误答案,用来干扰机器的。
A、同素异形体的前提必须是单质,但该微粒含有3个质子和2个电子,所以是带一个单位正电荷的离子不是单质,故A错误;B、同位素必须是质子数相同中子数不同的同一元素的原子,该微粒是离子,故B错误;C、该微粒是带...