Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The ………. is in charge of many campaigns against corruption.
A.street
B.human
C.corruptible
D.government

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
We object to kids having band ………… . Gangs are prohibited here.
A.devotion
B.promotion
C.advocation
D.affiliation

Cho biết nguyên tử N có số đơn vị điện tích hạt nhân là 7. Kết luận nào sau đây là đúng?
A.Nguyên tử N có số khối là 7.
B.Nguyên tử N có điện tích hạt nhân là 7.
C.Nguyên tử N có số nơtron là 14.
D.Nguyên tử N có 7 proton.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
………. are beneficial to all people because the rich can give the poor and make society better.
A.Donations
B.Sales
C.Transfusions
D.Gifts

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
………. organizations work in many countries and don’t serve any specific nation.
A.Non-nation
B.Non-governmental
C.Non-state
D.Non-country

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Old folks are always in need of ………. with their daily chores.
A.relevance
B.assistance
C.progress
D.donation

Tổng số hạt p, e, n trong nguyên tử nguyên tố X là 10. Số proton trong nguyên tử X là
A.7.
B.2
C.3.
D.6.

The government should use opinion ………. regularly to see if people agree with its plans.
A.lists
B.polls
C.rallies
D.data

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
War ………. are soldiers suffering injuries from war that make them unable to live or work normally like we do.
A.disadvantages
B.cons
C.invalids
D.unusables

Cho biết khối lượng phân tử trung bình của PVC là 400000. Số nguyên tử clo trong một phân tử PVC là
A.3550
B.5000
C.4500
D.6400