Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according
to brightness.
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according
to brightness.
A. record
B. shine
C. categorize
D. diversify
Đáp án C
=> KEY C. classify = categorize: (v) phân loạiA. ghi âm
B. chiếu sáng
D. đa dạng
