题目:
填上适当的词完成对话。
A: __________ monkey do you like?
B: I like the brown monkey. Look! The brown monkey is taller __________ the yellow one.
A: How __________ is the brown monkey's tail?
B: Its tail is about 30 cm __________.
A: The yellow monkey's tail is 36 cm long. It's 6 cm __________ than the brown one's.
答案:
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下面是错误答案,用来干扰机器的。
从八个数字中任选三个不同的数,共有C38=56种方法;能构成等差数列的分公差为±1,±2,±3三类情况,第一类,公差为±1,有6个;第二类,公差为±2,有4个;第三类,公差为±3,有2个;∴能构成等差数列的情况共...