2. 专升本
  3. According to the periodic table, ______ still some elements undiscovered.

According to the periodic table, ______ still some elements undiscovered.

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问题 According to the periodic table, ______ still some elements undiscovered.
选项 A、there seem to be
B、it seems to be
C、it seems that
D、here seem
答案A
解析 there be句型的变化。如果对其他的选项有疑问的话，可分析一下句子的成分。
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