主页
学科
搜索
账户
常见问题
当前学科:汽车高级装调工考试
题目:
问答题
试述汽缸体与汽缸盖变形带来的后果,应如何修复?
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
以提供凉菜、热菜、甜点、食品为主,分为设座和不设座两种的宴会类别是()。
根据下列短文,回答题。 Despite the fact that today viruses(病毒)are known to cause cancer in animals and incertain plants,there exists a great reluctance to accept viruses as being of importance in humancancer.Basic biological phenomena generally do not differ strikingly as one goes from one spe—cies to another.It should be recognized that cancer is a biological problem and not a problemthat is unique for man.Cancer originates when a normal cell suddenly becomes a cancer cellwhich multiplies widely and without apparent restraint.Cancer may originate in many differentkinds of cell,but the cancer cell usually continues to carry certain traits(特性)of the cell of origin.The transformation of a normal cell into a cancer cell may have more than one kind of cause.but there is good reason to consider the relationships that exist between viruses and cancer. Since there is no evidence that human cancer,as generally experienced,is infections,manypersons believe that because viruses are infections agents they cannot possibly be of importancein human cancer.However,viruses can mutate(突变)and examples are known in which a vi.rus that never kills its host can mutate to form a new strain of virus that always kills its host.Itdoes not seem unreasonable to assume that an innocuous(无害的)latent(潜伏的)virus mightmutate to form a strain that causes cancer.Certainly the experimental evidence now available isconsistent with the idea that viruses as we know them today,could be the causative(引起……的)agents of most,if not all cancer。including cancer in mall.Cancer should be considered to be a biological problem rather than a medical one because_________.
本装置有哪些产品?
可用于记录头脑风暴的信息化工具有()
某螺纹代号为M16×1,表示的是()螺纹。
男,49岁,农民,一周前感周身不适,发热,测体温38℃,认为是感冒,未引起重视,随后患者感下肢刺痛和皮肤瘙痒不适,痰多,不可控制地乱吐。言语增多,有时出现紧张,恐惧的感觉。体查:神志清楚,兴奋不安,瞳孔等圆等大,光反应存在,颈无明显抵抗,心肺无异常发现,肝脾未扪及,凯尔尼格征阴性,巴宾斯基征阴性。应采取什么隔离措施()
“跳一跳,摘桃子。”的教育方法体现了()的教育原则。
加拿大位于()洲。
高炉冷却设备破损漏水,能使铁口炮泥的各种性能降低,铁口深度迅速下降,铁口孔道()。
常规高电压正位胸片的拍摄要求有()。