Some birds that are molting maintain balance during flight by_____________.
A. constantly preening and caring fortheir remaining feathers
B. dropping flight feathers on both sides at the same time
C. adjusting the angle of their flight to compensate for lost feathers
D. only losing one-third of their feathers
Chọn đáp án B
Một số loài chim đang thay lông vẫn giữ được cân bằng trong lúc bay bằng cách____________.
A. thường xuyên rỉa lông và chăm sóc những chiếc lông còn lại của mình
B. để rụng lông bên ngoài cùng ở cả hai bên
C. điều chỉnh hướng bay để bù lại những chiếc lông bị mất
D. chỉ mất 1/3 số lông của mình
Thông tin trong bài: "Some species, for example, begin by dropping the outermost primary feathers on each side (to retain balance in the air) and wait until the replacement feathers are about one-third grown before shedding the next outermost, and so on." (Chẳng hạn như, một số loài bắt đầu bằng việc để rụng những chiếc lông chính bên ngoài cùng ở mỗi bên (đế giữ thăng bằng trên không) và đợi cho đến khi những chiếc lông thay mọc khoảng 1/3 trước khi thay rụng chiếc lông ngoài cùng tiếp theo, v.v)
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.
Around the world, rights related to information technology that are already legally recognized are daily being violated, (26) _____________in the name of economic advancement, political stability or for personal greed and interests. Violations of these rights have (27) _____________new problems in human social systems, such as the digital divide, cybercrime, digital security and privacy concerns, all of which have affected people's lives either directly or indirectly. It is important that countries come up with guidelines for action to (28) _____________the incidences of malicious attacks on the confidentiality, integrity, and availability of electronic data and systems, computer-related crimes, content related offences and violations of intellectual property rights. (29) _____________, threats to critical infrastructure and national interests arising from the use of the internet for criminal and terrorist activities are a growing (30) _____________.
Several people were hurt in the accident but only one_____________to hospital.
Although he received intensive treatment, there was no_____________improvement in his condition.
All members of his family are_____________aware of the need to obey the family rules.
I usually buy my clothes_____________. It’s cheaper than going to the dress maker
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Câu 20: We are tearing down these old houses to build a new office block
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
My mother made me_____________him next week.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Lisa: "It was very kind of you to help me out, Mark"
Mark:" _____________"