关于细胞生命历程的说法,错误的是[ ] A.细胞的全能性是指已经分化的细胞全部能

题型:选择题

问题:

关于细胞生命历程的说法,错误的是[ ]

A.细胞的全能性是指已经分化的细胞全部能进行进一步分化

B.抑癌基因能阻止组织细胞不正常的增殖

C.细胞衰老过程中部分酶活性改变

D.有丝分裂过程中,着丝点分裂发生在后期

考点:细胞的全能性有丝分裂细胞的衰老细胞的癌变
题型:选择题

Never mind the obesity epidemic—Canada is (31) with an epidemic of bad ideas on how to fight obesity. The latest is to treat fast-food restaurants as if they were (32) to porn shops, and (33) them from—or at least limit their numbers in—neighbourhoods with schools or hospitals.
That idea is one of many (34) by a group of medical doctors in an article published this week in the Canadian Medical Association Journal. The doctors, (35) by the cardiologist Mark Eisenberg of McGill University, seem to view a bag of potato chips as the moral (36) of a package of cigarettes. They (37) propose the use of graphic warnings for junk food, similar to (38) on cigarette packages," which now have pictures of a dying cancer (39) on them. They would discuss a (40) on junk foods. Salt they suggest removing from processed foods not (41) , so that no one notices, but fast enough to destroy the enticing taste.
There is a logical end to this kind of thinking: men skulking on street corners (42) hamburgers under their trench coats, even as a massive bureaucracy decides how to separate junk foods from (43) ones, for the purposes of launching a fusillade of taxes. (The authors even envision a utopia in which people snack on "trail mix, apple slices and granola bars. ")
Canada does not need a dietitian-in-chief. It doesn’t need healthy-food enforcement officers. People in a democracy should be (44) to make bad choices, even ones as reprehensible as scarfing chips or swilling sugary pop. These choices are different from cigarette smoking, which creates (45) effects on others.

A. close B. like C. likewiseD. akin

A new report on children’s inactivity suffers from a similar flaw. Active Healthy Kids Canada complains that 72 percent of youth from the age of 5 to 19 do not have (46) to after-school programs. But why should 19-year-olds, or even the bulk of 14-year-olds, need such regimentation The attitude seems to be that only the government can (47) children from bad habits. How the state is supposed to program the pounds off today’s children is not explained.
Demonizing smoking is very different from demonizing obesity, (48) is a condition, not a behaviour. It is influenced by (49) factors. Shaming and blaming, taxing and banning, will not work. We need to promote greater (50) , at all ages, and all weights, and keep in mind that the heavy hand of the state is not the answer to every ill.

题型:选择题

胃痛的临床辨证,当首选当辨 ()

A.寒

B.热

C.虚

D.实

E.标本

题型:选择题

下面的选项中哪项不属于管理活动的必备要素?()

A.管理的主体

B.管理的原则

C.管理的客体

D.管理的职能与方法

题型:选择题

有50名学生参加联欢会,第一个到会的女生同每个男生握过手,第二个到会的女生只差1个男生没握过手,第三个到会的女生只差2个男生没握过手,如此等等,最后一个到会的女生和7个男生握过手,那么这50名学生中有几名男生( )。

A.22

B.42

C.28

D.37

题型:选择题

病历摘要:男性,55岁,工人,因胸骨后持续性疼痛3小时急诊入院。患者于3小时前生气后突然感到胸骨后疼痛,压榨性,向左肩部放射,有濒死感,休息与口含硝酸甘油均不能缓解,伴大汗,无心悸、气短,二便正常。既往无高血压和心绞痛病史,无药物过敏史。吸烟20余年,每天1包,不嗜酒。查体:T36.8℃,P100次/分,R18次/分,BP130/70mmHg。急性痛苦病容,平卧位,无皮疹和发绀,浅表淋巴结未触及,巩膜无黄染,颈静脉无怒张,叩诊心界不大,心率100次/分,有期前收缩5~6次/分,心尖部有S4,未闻及杂音和心包摩擦音,肺清无啰音,腹平软,肝脾肋下未触及,下肢不肿。心电图:ST段Ⅱ、Ⅲ、aVF升高呈弓背向上型,QRS段Ⅱ、Ⅲ、aVF呈Qr型,T波倒置和室性期前收缩。要求:根据以上病历摘要,请写出初步诊断、诊断依据(如有两个以上诊断,应分别写出各自诊断依据,未分别写出扣分)、鉴别诊断、进一步检查与治疗原则。

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