Is 48 hours the man- made satellite is made in our country to orbit the planet around?A.

问题补充：

Is 48 hours the man- made satellite is made in our country to orbit the planet around?

A. it; that; where

B. it; when; what

C. it for; that it takes; that

D. it; that it takes; which

答案：

A. it; that; where

B. it; when; what

C. it for; that it takes; that

(答案→)D. it; that it takes; which

解析：考查强调句型。本题中的定语从句which is made in our country修饰先行词the man- made satellite。第一空和第二空的强调句型。句意：那颗我国生产的人造地球卫星要花48小时才可以绕地球飞行一周。故D正确。