旋转倾斜盘通过()与主旋翼上的变距摇臂相连。A、变矩拉杆 B、复合摇臂 C、连杆 D、变矩

题型:单项选择题

问题:

旋转倾斜盘通过()与主旋翼上的变距摇臂相连。

A、变矩拉杆

B、复合摇臂

C、连杆

D、变矩摇臂

考点:直升机考试直升机考试综合练习直升机考试综合练习题库
题型:单项选择题

五味子的保肝作用不包括

A.减轻四氯化碳引起的动物肝损伤作用

B.防止肝脂肪性变

C.升高血清ALT活性

D.减轻肝细胞坏死

E.抗肝纤维化

题型:单项选择题

一个肝素增多症患者,其检验结果可出现下列哪些情况?()

A.出血时间、凝血时间延长

B.血小板计数结果正常

C.纤维蛋白原含量减低

D.凝血酶原时间延长、凝血酶原消耗异常

E.3P实验、优球蛋白溶解实验阳性

题型:单项选择题

制定灭火救援预案应按()的程序进行。

①科学计算,确定参战力量和装备;

②确定范围,明确重点保卫对象;

③确定作战术意图;

④调查研究、收集资料;

⑤严格审核,不断充实完整。

A、②→④→③→①→⑤

B、②→④→①→③→⑤

C、②→④→①→⑤→③

D、②→④→⑤→①→③

题型:单项选择题

What makes Reader’s Digest the most successful magazine in publishing history Beneath the fun and excitement that fill our pages, we are, above all else, a serious magazine. Our readers are serious people. The Digest never loses sight of the fact that each day all of us confront a tough, challenging world. To millions who know our record of viewing this world, we are not a luxury; we are a necessity.

Basic to our magazine is a steady focus on the power of the individual. We show that man’s greatest ideas and accomplishment, his often stunning (极好的) faith and courage and hope, can be seen in the conduct of ordinary men and women. We reflect the universal skepticism that government can solve our problems; we herald the unending promise of self-determination and individual enterprise. Readers depend upon us for truth and accuracy, logic and common sense.

Our stories come from the grit of human experience-the tough, the tender, the funny. These stories—always told in a powerful narrative style—spring from love and caring, from a sense of right and wrong, from a dedication to the vitality (活力,生命力) of the human spirit. We are at the forefront of major issues of medicine, health, environment, human rights. We take readers behind the headlines to the cause and meaning of world events. We celebrate courage, champion adventure and always seek to expand the mind, and to enrich the spirit and the body. It is this clear voice—never preaching (说谎), always showing-that has made readers set us apart from all other magazines.

Deep within our widely varied package of humor, drama, and helpful information, there hums (哼唱) a subtle power that guides people in every aspect of their lives. They listen because what we put forth rings true. They are comfortable with our clear, concise words that inform them, entertain them, and remind them of those eternal values that fortify all decent people as they seek clarity and coherence in a confusing world. Our readers recognize that our compass is good for the long haul-that our principles are good for all seasons, good for all ages, good for all those who wish to play a role in making their world a better place. So long as we never lose sight of these powerful principles that are at the soul of our magazine-and so long as we remain at the cutting edge of life in our world—then we are prepared to lay claim to a future as brilliant and as exciting as our past.

All of the following about the Reader’s Digest are true EXCEPT that ()。

A. it firmly believes that the government can be trusted with ready help

B. people can strengthen their minds and will by reading it

C. it trusts that the ordinary people are capable of glorious deeds in their lives

D. it can help the ordinary people to discover truth for themselves

题型:单项选择题

为探究促甲状腺激素(TSH)分泌的影响因素,研究者从刚宰杀的家兔体内分离新鲜的下丘脑和脑垂体,然后把这些结构单独或一起培养于含有或不含油甲状腺激素的培养液中,培养后测定培养液内TSH的浓度,结果如下:

上述五个实验可分为()组对照实验,根据实验结果可说明影响促甲状腺激素分泌的因素有()。

更多题库