问题
选择题
19. It is reported that China has created the first man-made sun in the world recently, ______ ?
A．isn’t it
B．is it
C．hasn’t it
D．has it
答案
答案：C
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19. It is reported that China has created the first man-made sun in the world recently, ______ ?
A．isn’t it
B．is it
C．hasn’t it
D．has it
答案：C