Câu hỏi:
14/08/2023 614Read the text and think of the word which best fits each gap.
Vitamins are substances required for the proper functioning of the body. In this century, thirteen vitamins have (76) ………………………….discovered. A lack of any vitamins in a person’s body can cause illness. In some cases, an excess of vitamins can also (77) ………………………….to illness. For example, sailors in the past were prone to suffer from scurvy that is a disease resulting (78) ………………………….the lack of vitamin C. It causes bleeding of the gum, loss of teeth and skin rashes. Sailors suffer from scurvy because they did not eat fruits and vegetables. Fruits and vegetables (79) ………………………….vitamin C which is necessary for good (80) ………………………….. Vitamin B complex is composed of eight different vitamins. A lack of any of these vitamins will lead to different diseases. For instance, a person who has (81) ………………………….little vitamin B1 will suffer from beri-beri, a disease that causes heart problems and mental disorders. A (82) ………………………….of vitamin B2 results in eye and skin problems while deficiency of vitamin B6 causes problems of the nervous system. Too little vitamin B12 will cause anemia. The (83) ………………………….that vitamin deficiencies caused certain diseases led doctors to (84) ………………………….people suffering from these illnesses by giving them doses of the necessary vitamins. Today, vitamins are (85) ………………………….in the form of pills and can easily be bought at any pharmacy.
Read the text and think of the word which best fits each gap.
In this century, thirteen vitamins have (76) ………………………….discovered
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Trả lời:
Đáp án: In this century, thirteen vitamins have (76) been discovered.
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