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of the earth's surface covered with water. [ ] A. Two-third; is B. Two-third; ar

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of the earth's surface covered with water. [ ] A. Two-third; is B. Two-third; ar

________ of the earth's surface ________ covered with water.

[]A.

Two-third; is

B.

Two-third; are

C.

Two-thirds; is

D.

Two-thirds; are

试题答案

答案:C