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USB是一种串行总线规范，它支持设备热插拔，以菊花链方式最多可连接 (12) 个设备，设备间的连接电缆一般不能超过 (13) 。
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Effective reading requires not only "reading between the lines," but also "writing between the lines. " There are two ways in which one can own a book. The first is to (21) for it. But the act of purchase is only the (22) to possession. Full (23) won’t come unless you have absorbed the ideas to do you any good. There are kinds of book owners. The first has all the (24) sets and best-sellers—unread and (25) . The second has a great many books, all of which as clean and shiny as the day they were bought. The third, however, has a collection of books that are all dog-eared and dilapidated. Marking up a book is (26) to reading. First, it keeps you awake. Second, active reading is (27) , which expresses itself in words. Finally, writing helps you remember the thoughts you had or the thoughts the author expressed. Light fictions like Gone with the Wind do not require active reading. They can be read in a state of (28) . But great books cannot be read while you’re asleep. There are a number of devices for marking a book intelligently and (29) For example, (30) , vertical lines at the margin, stars or asterisks at the margin, numbers in the margin, numbers of other pages in the margin and circling of key words or phrases.
The name Genghis Khan (成吉思汗) probably makes many people think of conquering warriors on horseback leaving burning cities and piles of dead bodies behind them. While there is no doubt that Genghis Khan was the leader of a highly efficient killing machine, there was much more to him than military skill. He was also a talented politician with excellent diplomatic abilities. In the ll60s, the tribes of the Central Asian Steppes were almost constantly at war with one another. In the middle of the chaos, one of the tribal leaders had a son named Temujin. When the boy was nine years old, his father was poisoned by enemies. The tribe then abandoned the family, leaving them to survive by eating rats and insects. Despite his difficult childhood, Temujin grew up strong enough to claim his hereditary position as tribal leader. He became adept at forming alliances, as well as fighting battles. By 1206, all the Mongol tribes were ready to recognize him as supreme leader. They gave him the title Genghis Khan, which means "emperor of all emperors. " Having united the tribes of Central Asia, Genghis Khan turned his attention elsewhere. His ambition was world conquest, and he advanced at an astonishing rate. He invaded northern China and captured Peking, but was unable to subdue the whole country. Instead, he turned westwards. By the time of his death in 1227, he had created an empire that stretched from the Pacific coast to the Caspian Sea. (82) The Mongols (蒙古人) were superb horsemen who won their victories with a technique of pretending to retreat, then launching a surprise attack. Their discipline and organization made them extremely effective fighters. They were expert archers and could maintain total control of their horses while keeping both hands free for fighting. Genghis Khan’s armies were divided into tightly organized units which were directed by an efficient signaling system using black flags. (83) Their favorite tactic in open battle involved provoking an attack, and scattering as the enemy came forward. The Mongols would harass the enemy from the sides until the latter were exhausted, then close in for the kill. (84) After capturing a city, Mongol armies would test the sincerity of the inhabitants’ surrender. They would pretend to go away, leaving behind a small number of representatives. If these were killed, the Mongols would return to murder the entire population. They seldom took prisoners. (85) Despite his ruthless methods, Genghis Khan was not an impulsive killer. He avoided battle if diplomacy would work, and he was skilled at using spies to help achieve his aims. He also maintained the tradition of choosing leaders in a mass meeting, and people under his rule were able to advance by ability rather than noble birth. For the citizens of modern-day Mongolia, Genghis Khan is a folk hero and a symbol of their emerging democracy. A main street in the capital of Ulan Bator has been named after him, and his image is on a banknote. He even has a brand of vodka named after him, not an unusual memorial for one of history’s greatest conquerors. Perhaps Genghis Khan would appreciate this more than his traditional reputation as a ruthless killer.
Which of the words, A to D, is missing from the brackets BEND (LOOPHOLE) LAIR HALT ( ) LEAF
There are 1200 elephants in a herd. Some have pink and green stripes, some are all pink and some are all blue. One third are pure pink. Is it true that 400 elephants are definitely blue
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