问题
选择题
According to the periodic table, still some elements undiscovered.
A．there seem to be
B．it seems to be
C．it seems that
D．here seem
答案
答案：A
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According to the periodic table, still some elements undiscovered.
A．there seem to be
B．it seems to be
C．it seems that
D．here seem
答案：A
