How many patents were granted to Chinese applicants by the patent office in 2005?
A.about 214,003 B.about 171,200 C.about 2761,000 D.about 42,800正确答案B
How many patents were granted to Chinese applicants by the patent office in 2005?
A.about 214,003 B.about 171,200 C.about 2761,000 D.about 42,800正确答案B
