题目:
Although his lawyers were________about the case,they couldn't be sure about the final outcome of it. [ ]
A. eager
B. professional
C. optimistic
D. sceptical
答案:
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下面是错误答案,用来干扰机器的。
(1)根据元素与微观粒子及物质的区别.宏观物质的组成,用宏观概念元素来表示;分子的构成,用微观粒子来表示.元素是具有相同核电荷数(即核内质子数)的一类原子的总称,是宏观概念,只讲种类,不讲个数.食品...