According to the passage, which of the following words best describes the efforts of the marine biologists working with oysters?
Giải bởi Vietjack
: A
Dựa vào đoạn “So they set up well equipped hatcheries and went to work. But they did not have the proper equipment or the skill to handle the eggs. They did not know when, what, and how to feed the larvae. And they knew little about the predators that attack and eat baby oysters by the millions. They failed, but they doggedly kept at it. Finally, in the 1940’s a significant breakthrough was made” ® những nhà sinh vật học đã nỗ lực một cách kiên trì ® chọn A
Which of the following is NOT a result of the formation of ocean ice?
The word “bore” in line 3 is closest in meaning to which of the following?
In line 7, when the author states that the owners "anxiously watch the sky" there is the implication that the owners
Which of the following statements about the salinity of a body of water can best be inferred from the passage?
Which of the following can be inferred about the order in which Kentucky, Tennessee, and Vermont joined the Union?
In the author's opinion, the importance of coal-generated electricity could increase in the future for which of the following reasons?
In line 6, the word “further” is closest in meaning to which of the following?
According to the passage, how does the stick caterpillar make itself look like a twig?
According to the passage, what happens to homing pigeons when they are about a month old?
Which of the following best describes the organization of the passage?
