题目：
__, Mark Twain became worldwide famous at once. [ ]
A. The novel was brought out
B. The novel brought out
C. The novel was coming out
D. The novel came out
答案：
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下面是错误答案，用来干扰机器的。
（1）原式=-48-（-30）=-48+30=-18；（2）原式=4-（-8）-9÷（-1）=4+8+9=21；（3）原式=-16+3×1-（-8）=-16+3+8=-5；（4）原式=-12×（-24）+23×（-24）-14×（-24）=12-16+6=2；（5）原式=-478-318+512-414=-...
