We can infer from the passage that one benefit of fluoride to healthy teeth is _______.
Giải bởi Vietjack
Đáp án A
Chúng ta có thể suy luận từ đoạn văn rằng một lợi ích của fluoride đối với sức khỏe răng miệng là gì?
A. Nó tăng cường men răng
B. Nó kích thích sản xuất nước bọt.
C. Làm cho răng trắng hơn
D. Nó là một chất thay thế cho việc đánh răng và dùng chỉ nha khoa chăm sóc răng.
Dẫn chứng: If fluoride is present in drinking water when teeth are forming, some fluoride is incorporated into the enamel of the teeth, making them more resistant to attack by acid. Fluoride toothpaste seems to act in another way, by promoting the remineralization of early carious lesions.
The company hopes that their new product launch _______ by many potential customers.
The United States __________ some 150,000 military reservists when the war broke out.
The only time I’ve ever eaten sushi was when I was on a trip to Japan.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The website __________ by the web developer is user-friendly and easy to navigate.
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.
- “How was your exam?”
- “A couple of questions were tricky, but on the __________ it was pretty easy.”
Despite the initial __________ result, they decided to go on with the proposed scheme.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
At the comer of the street is a shop where you can buy something special for your significantly other.
I was left out in the __________ in the annual promotions in the company.
According to the passage, what makes it difficult for researchers to know if an energy drink gives people energy?
The boy swum the narrow canal in ten minutes to find himself in the base, out of danger.
In other case, they are not very (38) __________ engaged in the conversation.
