Khi lên men gạo, sắn, ngô (đã nấu chín) hoặc quả nho, quả táo, thu được ancol nào?

A. Etylen glicol.

B. Metanol.

C. Etanol.

D. Glixerol.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 23

  I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I’d have made such lasting friendships. Esjberg is a (23) _____________ port for a cyclist’s arrival, where tourist information can be obtained and money changed. A cycle track leads (24) _____________ town and down to Ribe, where I spent my first night. The only appointment I had to keep was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.

          In my (25)_____________  , a person travelling alone sometimes meets with unexpected hospitality, and this trip was no (26) _____________ . On only my second day, I got into conversation with a cheerful man who turned out to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had (27) _____________ for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me going, and the feeling that this would turn out to be a wonderful holiday

A. information

B. experience

C. knowledge

D. observation