在设计数据库的过程中，做需求分析的目的是（）。 A.获取用户的信息要求、处理要求、安

对信号把钩工的一般要求有哪些？

某患畜剖检后发现：血液呈鲜红色，凝固不良，胃内容物有苦杏仁味，则该畜可能患的疾病是（）

A.氢氰酸中毒

B.亚硝酸盐中毒

C.有机磷农药中毒

D.灭鼠灵中毒

E.棉籽饼中毒

铜是一种重要的金属元素，铜元素与银元素同处第IB族，+1价的铜和+1价的银都可形成二配位的络离子，如Ag(NH₃)²⁺、[AgCl₂]^-等，含铜最丰富的天然资源是黄铜矿(CuFeS₂)。

（1）从黄铜矿冶炼粗铜的传统工艺是将精选后的富铜矿砂与空气在高温下煅烧，使其转变为铜。这种方法的缺点是______________、______________。

（2）现有一种湿法冶炼技术，以黄铜矿为主要原料来生产铜、铁红颜料和可用于橡胶硫化的硫单质，原料的综合利用率较高。其主要流程如下

①写出反应Ⅰ中FeCl₃与CuFeS₂所发生反应的化学方程式：__________________________；

②写出反应Ⅳ中发生反应的离子方程式：____________________________。

③反应Ⅲ是FeCO₃在空气中煅烧，写出化学方程式：____________________________。

④反应Ⅴ所得溶液A中含有的溶质有____________________________。

“地球村”是人们对当今世界的一种称谓，原本广阔无垠的地球变为了“村落”，这恰恰反映了（）。

A.发达的现代交通运输体系

B.经济的繁荣

C.人类生活的丰富

D.科学技术的发展

How many of us would temp for three years while we waited for the perfect job Not many of us, perhaps. But Wentworth Miller, the "Prison Break" star, said he chose to wait even longer time (1) he found the right job.
"Actually I think it might have been three or four years until I was lucky enough to get guest (2) on TV shows," said Miller, 34, who rose to international stardom (3) to "Prison Break" in 2006. That kind of patience and p will was portrayed in "Prison Break". Miller (4) engineering wizard Michael Scofield, who tries everything to break out of a Chicago (5) with his brother. Miller said he was fond of his character, (6) he said "exists in shades of grey".
Miller comes from a (7) of teachers. He said he didn’t seem fated for a career in the arts, (8) his passion for acting. After (9) from Princeton with an English degree, he moved (10) his parents’ request to Los Angeles to look for a stable life. He started (11) in a little company that made television movies. This (12) simply faxing, filing, walking the boss’ dog and going to the store for the boss’ lunch. Every weekend during the summer, Miller (13) go to the office (14) he didn’t have air-conditioning. "I would hang (15) in the conference room and set up camp and rob the company kitchen," recalled Miller.
(16) , Miller realized he still had questions about his choice. He decided to quit. But the boss said he was making a mistake and offered him a well-paid assistant position. "I eventually (17) that if I did the corporate job, it would be great if I was successful, but I would always wonder about the (18) . If I did the acting and was successful, I would never wonder (19) that job," he explained. He quit and temped (20) many people in the entertainment industry.
Now, he’s a hot star and has people coming up to him at film festivals saying, "Weren’t you the one who (21) to stand by the copy machine "
"That was tough, but I’m glad I have that perspective. Because now I’m at a point (22) big shots laugh at all my jokes and I think, You know, I got coffee for people like you for six years’. So I know what’s (23) , because I’ve seen the other side." But what if, when he was offered the corporate job, there had been more money "It was never about the (24) There’s a kind of excitement that comes along with acting. I can’t find it anywhere else. Even if I had to go back to temping, even if this is not the beginning of an amazing career, I would not (25) making that jum
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