What is the main function of the toxins emitted by the dinoflagellates?
Giải bởi Vietjack
Chức năng chính của các chất độc được phát ra từ các trùng tảo là gì?
A. Chúng làm suy yếu cá chỉ đủ lâu để các sinh vật nhỏ bé tấn công.
B. Chúng khiến cá phát triển vết thương mà sinh vật ăn.
C. Chúng làm hỏng hệ thống thần kinh của những kẻ săn mồi tiềm năng.
D. Chúng là những chất độc có tác dụng nhanh giết chết cá trong vòng vài phút.
Đáp án: A.
Giải thích: “The toxins eventually cause the fish to develop large bleeding sores through which the tiny creatures attack”: Các chất độc cuối cùng khiến cá phát triển các vết loét chảy máu lớn mà qua đó các sinh vật nhỏ bé sẽ tấn công.
Read the following passage and mark the letter A, B, C, or to choose the word or phrase that best fits each of the numbered blanks from 25 to 29
HOME EDUCATION
Up until fairly recently, home schooling was (25) ___________ as something rather uncommon. In the past decade, however, the idea of children being taught in the family home has (26) ___________ in popularity. Many parents cite the alarmingly high incidence of violence in mainstream institutions as the reason behind their choice to home educate, (27) ___________ others point to the poor standards that are maintained in the state school system. They claim that an insufficient (28) ___________ of teachers and overcrowding in classrooms has led to an unacceptable situation. On the one hand, these parents may have taken a justifiable decision, but on the other, one can't help thinking about the deprivation these stay-at home children may be suffering as (29) ___________ as social interaction with their peers is concerned.
Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
Class 11 M's football team ___________ 2 games so far this season, and will probably win the championship.
By 1820, there were over sixty steamboats on the Mississippi river, ___________ were quite luxurious.
Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
The Notre Dame Cathedral, was built between 1877 and 1883, is set in the heart of Ho Chi Minh City's administrative center.
Many charity organizations have brought food supplies and clothes to flood-effecting areas in the Mekong Delta.
Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three tin the pronunciation in each of the following questions.
According to paragraph 2, what will NOT happen if one breathes the toxic air?
Mark the letter A, B, C, or D to indicate the most suitable response to complete each of the following exchanges.
Anne is seeing Mary off at the airport.
Anne: “Don't fail to look after yourself, Mary!”
Marry: “___________”
Some operations may have to be halted unless more blood donors come forward to help.
Mario was trying to ___________ if there was any cinnamon in the apple cake he was eating.
