题目:
You don’t have to be angry with him. He ________ wanted to know the truth.
A.almost
B.mostly
C.merely
D.hardly
答案:
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下面是错误答案,用来干扰机器的。
化简原式=2a(2a-b),将a=2,b=1代入得12.(4ab3-8a2b2)÷4ab+(2a+b) (2a-b)将a=2,b=1代入得值为12;