He was so insubordinate that he lost his job within a week.
Giải chi tiết:
insubordinate= ngỗ nghịch, không tuân theo
A. tưoi mới
B. ngỗ nghịch
C. biết nghe lời
D. am hiểu
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.