American Bill Gates is known around the world as founder and former chairman of Microsoft Corporation. He now serves as co-chair of the Bill & Melinda Gates Foundation. The private foundation is working to end deadly diseases and poverty.
Recently, Bill Gates spoke about the importance of...
Generation gap refers to a vast difference in cultural norms between a younger generation and their elders. It's a distressing thing for the phenomenon which occurs around the world. The (25) ____ of communication, different views on certain problems and different attitudes towards life may...
Question 1. Although she knows only a mere _______ of Spanish, she still manages to communicate her ideas well.
A. command
B. level
C. smattering
D. knack
Question 2. Online _______ hate speech results from conflicts among individuals in society.
A. critical
B. inflammatory
C. pent-up
D. hefty...
Question 1. Finishing a heavy-going task before a certain deadline truly gives me a _______ of accomplishment.
A. focus
B. sense
C. judgement
D. frame
Question 2. Christmas markets are popular in Europe and have recently begun to _______ in Britain.
A. catch up
B. fall behind
C. catch on
D. set...
Question 1. The media nowadays is often accused of _______ on people’s privacy.
A. infringe
B. imprint
C. impinge
D. indulge
Question 2. The head of the Human Resources Department found himself in the _______ line over recent job cuts.
A. heating
B. firing
C. brazing
D. flaming
Question 3. The...
Question 1. Few people can do creative work unless they are in the right _______ of mind.
A. trend
B. frame
C. attitude
D. tendency
Question 2. You can’t tell the difference between them; he _______ his mother.
A. looks after
B. takes after
C. brings up
D. puts up with
Question 3. This tour...
Một quả cầu nhỏ có khối lượng m = 1,6g, tích điện được treo bằng một sợi dây tơ mảnh. Ở phía dưới nó cách 3cm cần phải đặt một điện tích như thế nào để lực căng dây giảm đi một nửa.
A.
B.
C.
D.
Mình cảm ơn các bạn ạ.
Các hydroxide Be(OH)2, Pb(OH)2, Sn(OH)2, Zn(OH)2, Al(OH)3, Cr(OH)3.
Để thể hiện tính axit của Zn(OH)2 thì ngta viết nó dưới dạng H2ZnO2. Vậy còn các hidroxit còn lại viết dưới dạng (thể hiện tính axit) như thế nào ạ?
Mình cảm ơn các bạn nhiều ạ.
Question 1. As usual, the taxpayers will end up footing the _______ for the new animal shelter that the government is so busy boasting about.
A. law
B. fridge
C. bird
D. bill
Question 2. My mum was absolutely overjoyed to finally be _______ her promotion.
A. taken
B. given
C. made
D. caused...
Question 1. The couple’s _______ laughter destroyed the romantic atmosphere of the elegant restaurant.
A. raucous
B. audible
C. harrowing
D. disconcerting
Question 2. I feel it must be too late to apologize to my piano teacher, but at least I've got it off my _______.
A. chest
B. heart
C...
1. People are advised to______ smoking because of its harm to their health.
A. cut up
B. cut down on
C. cut off
D. cut in
2. He wasn't aware that only one mistake could________his chances of getting the job.
A. destroy
B. damage
C. ruin
D. devastate
3. The company is moving its headquarters to...
16. They ______ a big fortune when they were young, so they didn’t have to work hard.
A. came into
B. went up
C. came across
D. went around
17. The biggest fear is that humans might ______ control over robots.
A. gain
B. keep
C. lose
D. take
18. He had no prior ______ of the language before...
11. The trouble with James is that he never _______ on time for a meeting.
A. turns up
B. takes off
C. takes up
D. turns down
12. I know he wouldn’t _______ a promise to me, so I try to keep this promise.
A. break
B. cut
C. lend
D. say
13. The _________ of living in some places can be very...