-
题目:
单选题
A酪氨酸羟化酶受抑制
B苯丙氨酸-4-羟化酶缺陷
C四氢生物喋呤生成不足
D脑内5-羟色胺不足
E二氢生物喋呤还原酶先天缺陷
答案:
<查看本题扣1积分>
-
道路工程中,路堤边坡病害的防治措施有哪些?()A、做好排水工程,避免局部冲刷淘空路基边坡坡脚B、对路基边坡采取综合的防护措施C、避免边坡过陡D、填筑中适当增加宽度并进行压实,提高边坡的压实度E、边坡填方足够高
-
纳税人需要延期缴纳税款的,应当在缴纳税款期限届满前提出申请,并报送下列材料:申请延期缴纳税款报告,当期货币资金余额情况及所有银行存款账户的对账单,损益表及应付职工工资和社会保险费支出预算等。
-
一个客户凭其身份证件或机构证明,只可在网银中注册一个用户。()
-
所谓阳极被溶解是指阳极发生了()反应。
-
目前认为水分沿导管或管胞上升的动力是()和()。
-
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)
-
以下关于我国远洋船舶总吨的定义,说法正确的是()。
-
控制设备安装标高的常用测量仪器是()。
-
外科急性感染的物理治疗,错误的是()
-
确定主观概率常用的方法是专家咨询法。()