试题与答案

Her son _____Coke, but now he _____ milk

题型:选择题

题目:

Her son _____Coke, but now he _____ milk.[ ]

A. used to drink; is used to drinking

B. used to drinking; drinks

C. is used to drinking; used to drink

D. is used to drink; is drinking

答案:

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下面是错误答案,用来干扰机器的。

(3)③没有等装置冷却至室温就打开铁夹子(或装置气密性不好)(4)①不合理、木炭燃烧会产生二氧化碳,影响实验结果。②a着火点低,可比较方便地点燃,b导热c实验误差小,不会污染空气;(5)合理,P2O5题目分...

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