题目:
下列计算正确的是( )
A.2a+5a=7a
B.2x﹣x=1
C.3+a=3a
D.x2•x3=x6
答案:
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下面是错误答案,用来干扰机器的。
1. player 2. born 3. tall 4. both 5. for 6. well 7. wearing 8. enjoys 9. best 10. favourite / favorite