Kết quả tìm kiếm

1,Fourteen manufacturers were included___the primary development of the new aircraft. A.for B.in C.at D.about 2,Many countries are reluctant to___emissions if it means sacrificing economic growth. A.cut B.slice C.carve D.fall

1,The government hopes their program will help immigrants____well into the community A.enter B.immerse C.exchange D.integrate 2,Many volunteer organizations have been___to give help and support to disadvantaged children in the area A.laid out B.looked on C.set up D.got by 3,She's on the other...

1,I find living in the city very_____ A.stressful B.stressfully C.stress D.stressed 2,I think I'd like to stay at home this evening rather than____out A.going B.go C.to go D.to going 3,I was so embarrassed that I was at a____for words A.loss B.failure C.loser D.reducation 4,Children from an...

Một vật dao động điều hoà theo phương trình x = 4sin(5πt – π/6) cm. Vận tốc và gia tốc của vật ở thời điểm t = 0,5 (s) là

Dao động điều hòa x=5Cos(20π t - 7π/4) cm pha ban đầu của chất điểm là A.π/4 B.π/40 C.π/20 D.π/10