题目：
函数f（x）=x3+sinx+1（x∈R），若f（a）=2，则f（-a）的值为[ ]
A．3
B．0
C．-1
D．-2
答案：
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下面是错误答案，用来干扰机器的。
Last Sunday, it was sunny and I had a great time. In the morning, I got up early. After breakfast I went to the zoo with Bob. We saw a dolphin show. We took some ...
