C1:Trình bày rõ câu câu s của 1 chương trình gồm mấy phần? Những lưu ý cần thiết

C2: khái niệm biến? Khái niệm hằng? Cách khai báo hằng, biến?

C3: viết cú pháp của các câu lệnh sau:

- lệnh nhập giá trị cho biến

- lệnh in biến

- câu lệnh điều kiện dạng thiếu và đủ

Giải thích cú pháp trên

Mọi người giúp mình đi, sắp thi rồi, thanks

Dòng nào giải thích đúng ý nghĩa của từ bối rối ?

A. Nói rất nhỏ nhẹ, không thành tiếng

B. Ầm ĩ, gây náo động

C. Lúng túng, không biết làm thế nào

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

When Jack questioned which one I needed, I said I didn’t mind.

A. I would have done the choosing if they had asked me to. 

B. It was up to me to choose between them, but I really didn't want to. 

C. Jack said I could choose between them, but I said it didn’t matter to me 

D. Jack wanted me to choose for him and I agreed to do so.

Read the following passage and mark the letter A,B,C, D on your answer sheet to indicate the correct answer to each of the following questions .

Baseball evolved from a number of different ball-and stick games (paddle ball, trap ball, one-old-cat, rounders, and town ball) originating in England. As early as the American Revolution. It was noted that troops played “baseball” in their free time. In 1845 Alexander Cartwright formalized the New York Knickerbockers’ version of the game: a diamond shaped infield, with bases ninety feet apart, three strikers - you’re - out , batter out on a caught ball , three outs per inning , a nine man team. “The New York Game” spread rapidly , replacing earlier localized forms. From its beginnings, baseball was seen as a way of satisfying the recreational needs of an increasingly urban - industrial society. At its inception it was it was played by and for gentlemen. A club might consists of 40 members. The president would appoint two captains who would choose teams from among the members. Games were played on Monday and Thursday afternoons, with the losers often providing a lavish evening’s entertainments for the winners

During the 1850- 70 period the game was changing, however, with increasing commercialism (charging admission), under - the - table payments to exceptional to players, and gambling on the outcome of games. By 1868 it was said that a club would have their regular professional ten, an amateur first - nine , and their” muffins “ (the gently duffers who once ran the game) . Beginning with the first openly all - salaried team (Cincinnati’s Red Stocking Club) in 1869, the 1870- 1890 period saw the complete professionalization of baseball, including formation of the National Association of Professional baseball players in 1871. The National League of Professional Baseball Clubs was formed in 1876, run by business- minded invertors in joint-stock company clubs. The 1880s has been called Major League BasebalTs “Golden Age”. Profits soared, player’s salaries rose somewhat, a season of 84 games became one of 132, a weekly periodical “ The sporting News” came into being, wooden stadiums with double-deck stands replaced open ííelds, and the standard refreshment became hot dogs, soda pop and peanuts. In 1900 the Western League based in the growing cities of the Mid-west proclaimed itself the American League.

Question:The word “itself” in line 24 refers to______

A. the Western League

B. growing cities

C.the Midwest

D. the American League

Lên men 27 gam glucozơ, dẫn toàn bộ khí CO₂ thu được vào dung dịch Ca(OH)₂ dư, thu được 20 gam kết tủa. Hiệu suất của quá trình lên men glucozơ là

A. 33,3%.

B. 25,0%.

C. 75,0%.

D. 66,7%.

Dung dịch nào sau đây làm xanh quỳ tím?

A. Etylamin

B. Alanin

C. Glyxin

D. Anilin

X là este hai chức, Y là este đơn chức (đều mạch hở). Đốt x mol X hoặc y mol Y đều thu được số mol CO₂ lớn hơn số mol H₂O là 0,08 mol. Cho 14,88 gam hỗn hợp H gồm X (x mol); Y (y mol) tác dụng vừa đủ với dung dịch NaOH, sau phản ứng thu được hỗn hợp T chứa 2 muối của 2 axit no và hỗn hợp Z chứa 2 ancol đơn chức có số nguyên tử cacbon liên tiếp nhau. Cho Z tác dụng hết với Na dư thu được 0,08 mol H₂. Mặt khác, 14,88 gam H làm mất màu vừa hết 0,12 mol Br₂. Biết H không tham gia phản ứng tráng bạc. Phần trăm khối lượng muối có phân tử khối lớn hơn có giá trị gần nhất với?

A. 41,5%

B. 47,5%

C. 57,5%

D. 48,5%