【题目】We have launched another man-made satellite, ______ is announced in today's newspaper.
A.that
B.which
C.who
D.what

【答案】B
【解析】句意：我们已经发射了另一颗人造卫星，这在今天的报纸上宣布了。 ______ is announced in today's newspaper.是一个非限制性定语从句，先行词代指前面整个句子，且是非限制性定语从句，需用which引导。，故选B。