The optic fiber was a major______in the field of telecommunications.
A. break down
Giải bởi Vietjack
Đáp án B.
Tạm dịch: Các sợi quang học là một bước đột phá lớn trong lĩnh vực viễn thông.
A major breakthough: thành tựu lớn, thành công vượt bậc.
Ex: a breakthough in negotiations/ cancer research: một bước đột phá trong vụ thương thuyết/ nghiên cứu về ung thư
to make/achieve a breakthrough: tạo ra, đạt được một bước đột phá
After four hours of walking in the hot summer sun, we were _____________ for a drink.
Students can _________lots of information by attending lectures regularly.
I'd like to ______ this old car for a new model but I can't afford it.
The terrible weather may have _____________ the small population.
If one wants to take part in volunteer organisations such as Green Summer Camp, Green Saturday Movement, Blood Donor, he/she will have to ______ an application form.
Even the most _____________ individuals can be thrown into a mild panic at the prospect of organizing a wedding.
Do you often _____ your intuition and then make a choice based on your feelings?
Vietnamese athletes compete regionally and internationally and ______ high ranks in many sports.
To attract the waiter’s attention, wait until you _______ and raise you hand slightly.
