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Câu 1: Xâu St sau đây có độ dài bằng bao nhiêu? a) St := ‘Truong THPT Do Dang Tuyen’; b) St:= ‘’; c) St:= ‘ ’; Câu 2: Khai báo nào sau đây SAI? Giải thích? a. Var S: String[5]; b. Var S: String[20]; c. Var S:String; d. Var S:String[300]; Câu 3: Hãy phân tích và cho biết chức năng của mỗi dòng lệnh trong chương trình sau: Var S:string[30];{1} Begin Write(‘Nhap ho ten:’);{2} Readln(S);{3} Writeln(‘Ten vua nhap:’,S); {4} Readln; End. Bài 2: Câu 1: Hãy cho biết khai báo biến xâu nào sau đây là đúng? A. Var St:string[1..20]; B. Var St:string of Char; C. Var St:string[10]; D. Var St:string[500]; Câu 2: Cho xâu S1 := ‘abc’ ; và xâu S2 := ‘bac’ ; Hãy cho biết kết quả của S2 sau khi thực hiện thủ tục INSERT(S1,S2,3) A. ‘abcbac’ B. ‘bacabc’ C. ‘baabcc’ D. ‘abbacc’ Câu 3: Cho st1=’Chu Van An’ và st2:=copy(st1,pos(‘V’,st1),5), kết quả xâu st2 là: A. st2= ‘Chu Van’ B. xt2=‘u Van an’ C. st2= ‘Van An’ D. st2= ‘Van A’ Câu 4: St:=’hoc tap tot’. Thủ tục Delete(st,4,4) cho kết quả: A. ‘hoc tap’ B. ‘hoc tot’ C. ‘tap tot’ D. ‘tot' Câu 5: Hàm length(‘MicrosoftMW’) có kết quả là A. 8 B. 10 C. 11 D. 12 Câu 6: Cho xâu S1=’VinhHaLong’. Em hãy cho biết giá trị của S2:= Copy(S1,1,4). A. ‘Ha’ B. ‘Vinh’ C. ‘Long‘ D. ‘ng‘ Câu 7: thủ tục INSERT(S1,S2,VT) thực hiện công việc gì trong các công việc sau: A. Chèn xâu S1 vào xâu S2 bắt đầu từ vị trí VT B. Chèn xâu S2 vào xâu S1 bắt đầu từ vị trí VT C. Xóa xâu S2 vào xâu S1 bắt đầu từ vị trí VT D. Xóa xâu S1 vào xâu S2 bắt đầu từ vị trí VT Câu 8: Chọn khai báo biến đúng trong ngôn ngữ lập trình Pascal? A. Var st: String[275]; B. Var st: string[255]; C. Var st: String[50]. D. Var: st: string; Giải giúp mình 1 cách chi tiết nhé

lam dung cho 50 diem I. Choose the word whose underlined part is pronounced differently from the others. 1. A. earthquake B. weather C. without D. though 2. A. technology B. psychology C. character D. charge II. Choose the word whose main stress pattern is placed differently. 3. A. natural B. disaster C. volcano D. typhoon 4.A. erupt B. collapse C. gather D. occur III. Choose the best options to complete the sentences: 5. When we came, they …………….. for the evacuation yesterday evening. A. are preparing B. were preparing C. had prepared D. prepared 6. The last tsunami caused a lot of…………. to the countryside along the Pacific coast. A. eruption B. disasters C. destruction D. damage 7. The earth quake…… the city at two in the morning last week. A. occurred B. hit C. swept D. measured 8. The people in this country have been trained to deal…… disasters. A. in B. about C. with D. to 9. The police forced him not ……. his place because he has been a witness . A. to leave B. leaving C. leave D. left 10. Volcanic eruptions are one of the most…………..natural disasters. A. destroy B. destruction C. destructive D. destroyed 11. Tidal waves are the result of a …. shift in the underwater movement of the earth. A. impressive B. slight C. clear D. sudden 12.…………. should include food, water, medications, personal hygiene items, copies of personal documents and some money. A. An emergency supply kit B. A food supply kit C. A health testing kit D. A medical check-up. 13. The government……….. the danger of the powerful earthquake before it struck the North- East of Japanese. A. have warned B. had warned C. warned D. has warned 14.They always believe in the government’s policy . (Find out the antonym) A. feel disappointed B. feel nervous C. feel worried D. feel sad 15. The roof collapsed under the weight of snow . (Find out the synonym) A. fell in B. broke off C. pulled down D. put way. IV. Read the text and choose the best answer A, B or C to each question below The Great Hanshin earthquake, or the Kobe earthquake as it is more commonly known overseas, was an earthquake in Japan that measured 7.3 on the Japan Meteorological Agency magnitude scale. It occurred on January 17 th , 1995 at 5:46 a.m in the southern part of Hyogõ Prefecture, and lasted for approximately 20 seconds. The epicenter ( dư chấn ) of the earthquake was on the Northern end of Awaji Island near Kobe, a cosmopolitan city ( thành phố quốc tế ) of over 1.5 million people. A total of 6,434 people, mainly in the city of Kobe, lost their lives. Additionally, it caused approximately ten trillion ( nghìn tỷ ) yen in damage. It was the worst earthquake in Japan since the Great Kantõ earthquake in 1923, which claimed 140,000 lives. 16. The word ‘overseas’ in the text is closest meaning to ____________ A. at sea B. abroad C. by sea D. aboard 17. The word ‘occurred’ in the text is closest meaning to ____________ A. started B. ended C. happened D. finished 18. It is started in the passage that the number of deaths in the city of Kobe ____________ A. was not as high as in the Great Kantõ earthquake B. exceeded that of any known earthquake C. was greater than that of the Great Kantõ earthquake D. was the highest in Japan. 19. The Northern end of Awaji Island was the place where ____________ A. 1.5 million people lost their lives B. the effects of the earthquake were felt most strongly C. there was no damage to people and property. D. there were many homeless people 20. We understand from the passage that the Kobe earthquake ____________ A. is not the deadliest earthquake in the history of Japan B. is internationally known as the Great Hansin earthquake C. didn’t cause any damage in neighborhood of Kobe D. was not the dangerous disaster in Japan.