The notice should be put in the most conspicuous place so that all the students can be well-informed.
Giải chi tiết:
conspicuous = dễ thấy, hiển nhiên
A. thông thường
B. nghi ngờ
C. dễ thấy
D. đẹp
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.
Population growth rates vary among regions and even among countries within the same region.