Một mạch điện gồm hai đèn mắc song song, trên mỗi đèn có ghi thông số: 220V – 115W; 220V – 132W. Nối hai đầu của mạch điện ấy vào mạng điện xoay chiều U = 220V. Xác định: cường độ dòng điện cung cấp cho mạch điện

Tại sao gia tốc rơi tự do và trọng lượng của vật càng lên cao thì càng giảm.

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Bill. “Let’s stop for a drink.” - Bruce. “ ___________”

A. Long time no see

B. Nice to meet you

C. Sorry, we’ve got little time

D. You’ve welcome

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

A. document 

B. development 

C. improvement 

D. environment

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

  It is often the case with folktales that they develop from actual happenings but in their development lose much of their factual base; the story of Pocahontas quite possibly fits into this category of folktale. This princess of the Powhatan tribe was firmly established in the lore of early America and has been made even more famous by the Disney film based on the folktale that arose from her life. She was a real-life person, but the actual story of her life most probably different considerably from the folktale and the movie based on the folktale. Powhatan, the chief of a confederacy of tribes in Virginia, had several daughters, none of whom was actually named Pocahontas. The nickname means “playful one,” and several of Powhatan’s daughters were called Pocahontas. The daughter of Powhatan who became the subject of the folktale was named Matoaka. What has been verified about Matoaka, or Pocahontas as she has come to be known, is that she did marry an Englishman and that she did spend time in England before she died there at a young age. In the spring of 1613, a young Pocahontas was captured by the English and taken into Jamestown. There she was treated with courtesy as the daughter of chief Powhatan. While Pocahontas was at Jamestown, English gentlemen John Rolfe fell in love with her and asked her to marry. Both the governor of the Jamestown colony and Pocahontas’s father Powhatan approved the marriage as a means of securing peace between Powhatan’s tribe and the English at Jamestown. In 1616, Pocahontas accompanied her new husband to England, where she was royally received. Shortly before her planned return to Virginia in 1617, she contracted an illness and died rather suddenly.

  A major part of the folktale of Pocahontas that is unverified concerns her love for English Captain John Smith is the period of time before her capture by the British and her rescue of him from almost certain death. Captain John Smith was indeed at the colony of Jamestown and was acquainted with Powhatan and his daughters, he even described meeting them in 1612 journal. However, the story of his rescue by the young maiden did not appear in his writing until 1624, well after Pocahontas had aroused widespread interest in England by her marriage to an English gentlemen and her visit to England. It is the discrepancy in dates that has caused some historians to doubt the veracity of the tale. However, other historians do argue quite persuasively that this incident did truly take place.

(“Preparation Course " for the TEOFL Test - Deborah Phillips - Longman)

 Why are some historians doubtful about the portion of the Pocahontas folktale dealing with John Smith?

A. His account did not appear until well after the event supposedly happened. 

B. Captain John Smith probably never knew Pocahontas. 

C. Captain John Smith was never actually in Jamestown. 

D. His rescue purportedly happened while Pocahontas was in England.