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机车的撒砂装置管口应对准（）。
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数字程序控制系统一般由输入装置、控制器、（）和输出装置等四部分组成。
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工业润滑油统一以（）℃运动粘度为基础进行分类。
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室性期前收缩
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妊娠晚期及分娩期合并急性病毒性肝炎，对产妇威胁最大的是()
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简述脑电图在癫痫诊疗以及预后判断中的意义。
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The combination of horror stories about people coming over the borders and editorials about congressional inability to act made members of Congress decide the time had (1) to enact immigration reform. But supporters of reform warn the end is not here yet. The conference report must still pass both (2) of Congress, and a Senate filibuster is always a possibility. (An Immigration Reform in US)Those are the memories that should be preserved, to be remembered and relied upon when harder times take hold. Those times (3) a photographer like me will catch you at a party with a loneliness on your face that you didn’t think would show or bitterness tugging at your lips during a conversation you didn’t intend to be overheard. Well, we all slip up like this sometimes, and sooner or later we get caught with our guards (4). (Photographs vs. Reality)We noted favorable trends in the (5) East, not just the longing for peace by the Israeli and Arab peoples, but constructive actions taken by leaders in the region to breathe new life into the peace process. No one has done (6) than Prime Minister Peres to that end. His vision, his statesmanship, and his tenacity are greatly appreciated here. (Israeli Prime Minister’s Last Visit to US)You would think that when you move from two competitors in a market to just one airliner, prices would have to go (7). But I want you to keep in mind that unrestricted fares of the kind People Express offered, you know, wholesale unrestricted fares, were being eliminated and phased out anyway, because (8) were not profitable. (Expansion of Texas Air Corporation)The garment workers still have an uphill battle to (9), to secure a decent living for themselves and their children. In the year since the (10), they’ve made important strides in assuring that they get a fair shake. University students, lawyers and feminists have joined the seamstresses in their fight to set new terms at the work place. (Earthquake and New Economic Structure in Mexico)Too (11) secrets, too (12) access to secrets, too many spies, too little accountability for securing our national secrets, and too little effort given to combating the very real threat which spies represent to our national security. (US Counter-Intelligence Efforts)The timing of Kalb’s action today is likely to add to the controversy (13) government deception. And it comes at an awkward moment for the Reagan (14), just days before an important pre-summit meeting with the Soviets in Iceland and in the wake of official denials about a downed guerrilla resupply plane in Nicaragua. (Bernard Kalb and Disinformation Program)It wasn’t heroic; it was easier than to die going to the train cars. And that people (15) participated in the ghetto uprising were actually, in a sense, lucky. They had arms; they could do something about what was going on while those hundreds of thousands who were just led to the train cars were equally heroic, but their death (16) much more difficult. (Special Fighters in Warsaw During World War II)Let us assume, that a man and a woman in the same company (17) their jobs on the same day: he, because he is ill; she, because she’s about to have a child. And they return on the same day, but under the California law she gets her job back and he (18) not. Is that fair? (Maternity Leave and Job Guarantee)Today, Governor Thompson declared a number of additional community state disaster areas, setting up the first step for Federal help. The rainy (19) forecast is not of much comfort, and some weary workers and homeowners say the only thing left to do now is wait (20) the flooding passes and put everything back together again. (Flooding in Illinois and Wisconsin)
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基础科学的研究成果是整个科学技术的（），对技术科学和生产技术起指导作用。
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动感地带全面上市的时间是（）
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贝类食性不包括（）。