Khoanh vào chữ cái trước câu trả lời đúng

Chỉ ra phát biểu sai trong các phát biểu dưới đây:

A. Dạng cấu trúc lặp với số lần lặp biết trước được thể hiện bằng câu lệnh Pascal For... do.

B. Các câu lệnh For.. do không thể lồng trong nhau

C. Câu lệnh GotoXY(a,b) có tác dụng đưa con trỏ về cột a, hàng b.

D. Câu lệnh GotoXY(a,b) có tác dụng đưa con trỏ về hàng a, cột b.

Read the passage carefully and then answer the questions below

Becky schroeder, glo-sheet

Becky was only 10 years old when she was attempting to do homework in her mom car. As it got darker outside, she had the idea that there should be a way to make her paper easier to see in the dark. Becky took matters into her own hands and began playing around with phosphorescent materials, which emitted light but without heat. She then used phosphorescent paint to cover an acrylic board and the Glow-Sheet was created. In 1974, at the age of 12, Becky became the youngest women to be granted U. S. patent for her Glo-Sheet invention.

1. What happened while she was doing homework in her mom’s car?

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2. Why did Becky have the idea of the Glo-Sheet?

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3. What did she do to make the first Glo-Sheet?

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4. What is one advantage of her invention?

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