The period when the great painted caves at Lascaux and Altamira were occupied by Upper Paleolithic people has been establish by carbon-14 dating, but what is much more difficult to determine are the reason for their decoration, the use to which primitive people put the caves, and the meaning of the magnificently depicted animals.
A. 同题。
B。 has been establish by carbon-14 dating, but what is much more difficult to determine is
为什么用 is, 不用are. 从句子意思上来说, what is much more difficult to determine 指的是三个东西呀。
The period when the great painted caves at Lascaux and Altamira were occupied by Upper Paleolithic people has been establish by carbon-14 dating, but what is much more difficult to determine are the reason for their decoration, the use to which primitive people put the caves, and the meaning of the magnificently depicted animals.
The period when the great painted caves at Lascaux and Altamira were occupied by Upper Paleolithic people has been establish by carbon-14 dating, but what is much more difficult to determine are the reason for their decoration, the use to which primitive people put the caves, and the meaning of the magnificently depicted animals.