The total mass of all asteroids in the solar system is much less ______ mass of Earth’s Moon.
(A) than that is the
(B) than the
(C) the
(D) is the
Ans:B
怎樣分析這句子的結構?

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jordanmax3 \$m[1]:5.
The total mass of all asteroids in the solar system is much less ______ mass of Earth’s Moon.
(A) than that is the
(B) than the
(C) the
(D) is the
Ans:B
怎樣分析這句子的結構?
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