题目内容
某企业需要购置一套设备，有多个方案可供选择，其中的一个方案采购设备A价值 1 800万元。设备的年维持费(包括能耗费、维修费和养护费)、年工作量见下表，如果不考虑时间价值因素，则该设备的费用效率为( )万元。 年数 1 2 3 4 5 年维持费/万元 180 200 220 240 260 年工作量/万吨 29 29 38 32 330
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I picked up a book that happened to lie________________(即将到来) and read a few pages.
We can only______________________(传递这张图片) through the Internet.
One night in April 1912, a huge new (36)_________liner, the Titanic, was (37)________the Atlantic. She was just about the most (38)_________ship that had ever been built. She was going very fast, which was (39)_________because there were icebergs around and it was very dark that night. The passengers were all having a good time when the ship suddenly ( 40 )__________one of the icebergs. The ship began to (41)__________and the passengers tried to (42)_________, but there were not enough lifeboats since nobody thought they would ever be necessary. Eight white rockets were (43)________into the air in order to get help. Another ship, the Californian, was passing nearby. An officer and another sailor on it saw the rockets. (44)___________________ and were just firing the rockets in fun. Anyway they did wake the captain. But the captain was too sleepy to understand and the Californian just went on sailing away, in another direction. When the Titanic finally went down, (45) ___________________. They were trying to keep the passengers calm. Two thirds of the passengers were drowned. (46) ___________________.
As soon as it was revealed that a reporter for Progressive magazine had discovered how to make a hydrogen bomb, a group of firearm (火器) fans formed the National Hydrogen Bomb Association, and they are now lobbying against any legislation to stop Americans from owning one. "The Constitution," said the association’’s spokesman," gives everyone the right to own arms. It doesn’’t spell out what kind of arms. But since anyone can now make a hydrogen bomb, the public should be able to buy it to protect themselves." "Don’’t you think it’’s dangerous to have one in the house, particularly where there are children around" "The National Hydrogen Bomb Association hopes to educate people in the safe handling of this type of weapon. We are instructing owners to keep the bomb in a locked cabinet and the fuse (导火索) separately in a drawer." "Some people consider the hydrogen bomb a very fatal weapon which could kill somebody." The spokesman said, "Hydrogen bombs don’’t kill people -- people kill people. The bomb is for self-protection and it also has a deterrent effect. If somebody knows you have a nuclear weapon in your house, they’’re going to think twice about breaking in." "But those who want to ban the bomb for American citizens claim that if you have one locked in the cabinet, with the fuse in a drawer, you would never be able to assemble it in time to stop an intruder (侵入者)." "Another argument against allowing people to own a bomb is that at the moment it is very expensive to build one. So what your association is backing is a program which would allow the middle and upper classes to acquire a bomb while poor people will be left defenseless with just handguns." From the tone of the passage we know that the author is ________.
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