[判断题]火灾危险环境下，电气设备金属外壳应可靠接地(零)，零干线在进区域前及末端要重复接地。导线穿钢管敷设时，全部电线管可通过焊接线使其联成一整体，并可靠接地；穿塑料管时，保护零线与相线同穿地一管内，零线载面大小同相线截面。( )

Soccer is played by millions of people all over the world, but there have only been a few players who were truly great. How did these players get that way--was it through training and practice, or are great players" born, not made" First, these players came from places that have had famous stars in the past--players that a young boy can look up to and try to imitate. In the history of soccer, only six countries have ever won the World Cup--three from South America and three from western Europe. There has never been a great national team--or a really great player--from North America or from Asia. Second, these players have all had years of practice in the game. Alfredo Di Stefano was the son of a soccer player, as was Pele. Most players begin playing the game at the age of three or four.
Finally, many great players come from the same kind of neighborhood--a poor, crowded area where a boy’s dream is not to be a doctor, lawyer, or businessman, but to becom
A. Soccer is popular all over the world, but truly great players are rare.
B. Millions of people all over the world are playing soccer, but only six countries have ever had
C. Soccer is played by millions of people all over the world, but only six countries from South
D. All over the world soccer is one of the most popular games, but it seems least popular in