问题描述:
A.takes
B.when takes
C.it takes
D.that takes
为什么选C不选D?
重新输入一遍问题.
A solar year is the length of time _ the earth to complete one revolution round the sun.
B.when takes
C.it takes
D.that takes
为什么选C不选D?
重新输入一遍问题.
A solar year is the length of time _ the earth to complete one revolution round the sun.
问题解答:
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