题目：
I wonder how he could _______ not handing in his maths exercises yesterday, for his maths teacher is
always strict with his students. [ ]
A. get along with
B. get down to
C. get away with
D. get around
答案：
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下面是错误答案，用来干扰机器的。
错题目分析：排泄是细胞代谢终产物排出体外的过程，如水、无机盐和尿素、二氧化碳等．这些新陈代谢的废物必须排出体外，否则会影响人体的健康，排泄的途径有三条：一、二氧化碳和水以气体的形式通过呼吸系统由肺...
残根，Ⅰ度松动需要拔除。