导致脉冲星“灯塔效应”的因素有: ①表面各部分辐射能量强度不同 ②局部表面周期性地

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问题:

导致脉冲星“灯塔效应”的因素有: ①表面各部分辐射能量强度不同 ②局部表面周期性地发射电波 ③表面各点辐射能量极不稳定 ④自身的旋转

A.①③

B.②③

C.②④

D.①④

考点:在职联考GCT(语文)在职硕士学位入学资格考试GCT语文真题2003年
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阅读理解。

     Happiness is for everyone.  In fact, ①happiness is always around you if you put

your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health, when you get success, your friends will congratulate 'you. When you do something wrong, people around you will help you to correct it. And when you do something to others,  you will feel happy. too. All these are your happiness. If you notice a bit of them; you can find that happiness is always around you.②Happiness is

not the same as money, it's a feeling of your heart. When you are poor, you can also be very happy, because you have something else that can't be bought with money.

When you meet with difficulties, you can say loudly you are very happy. because you have more chances to challenge(挑战)yourself. So you cannot always say you are

poor and you have a bad luck.  ③If you take every change you get, you can be a

happy and lucky person.

1. 将①处改为否定句形式(意义不变)。

                                                                              

2.将②处译成汉语。

                                                                              

3.将③处改为so that引导的目的状语从句。

                                                                              

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如何预防游客证件、财物遗失现象的发生?

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国防力量是一国综合国力的一个重要因素,一国的军事实力越强,就越不会遭到其他国家的侵犯。由此可知( )

A.军事力量强大的国家,其他方面也都会强大

B.军事力量是衡量一个国家在世界上影响力的第一标准

C.要提高综合国力,必须重视国防力量的建设

D.任何政府都不应该忽视国防力量

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缺陷管理的目的是为了掌握运行设备存在的问题,以便按轻、重、缓、急消除缺陷,提高设备的健康水平,保证设备的安全运行,同时以缺陷进行全面分析总结变化规律,为大修、更新改造设备提供依据。

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8个月婴儿,皮肤苍白,食欲不佳,精神不振 1个月。查体:皮肤粘膜苍白,心前区可闻Ⅱ级吹风样收缩期杂音,肝肋下3cm质软,脾肋下1cm。化验:血红蛋白70g/L,红细胞3.5×1012/L。末梢血涂片染色检查:红细胞大小不等,中心浅染,以小细胞为多。最符合哪种贫血

A.营养性巨幼红细胞性贫血
B.地中海贫血
C.缺铁性贫血
D.自身免疫溶血性贫血
E.再生障碍性贫血

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