细胞衰老通常是由于端粒缩短、原癌基因激活、氧化应激、免疫损伤等各种内部和外部因素所造成的DNA持续性损伤

细胞衰老通常是由于端粒缩短、原癌基因激活、氧化应激、免疫损伤等各种内部和外部因素所造成的DNA持续性损伤

答:√

选择目标市场时,需要评价细分市场的哪些方面( )
答:细分市场的规模和增长率 细分市场的结构吸引力 企业的目标和资源

青书学堂: (判断题) 有良好壁面传热的管式反应器主要的传热方向是轴向,径向传热可以忽略( )。
答:错误

中国大学MOOC: 以下陈述错误的是: 1、 从系统产出角度看,设备闲置会导致系统产出降低;2、从系统产出角度看,设备效率提高会导致系统产出增加;3、为了提高系统产出,应追求提升瓶颈设备利用率;4、为了提高系统产出,应追求所有设备满负荷运转。
答:4、为了了提高系统产出,应追求所有设备满负荷运转; 2、从系统产出角度看,设备效率提高会导致系统产出增加; 1、 从系统产出角度看,设备闲置会导致系统产出降低;

勤俭是家庭兴旺的保证,也是社会富足的保证
答:对

大中华区最大的出口商是()。
答:鸿海

I said to him what I very miss her.
答:√

被称为“气血生化之源”的是
答:脾胃

电影《无问西东》的导演是_________。
答:李芳芳

关于大叶性肺炎的描述正确的是
答:以肺泡内弥漫性纤维素渗出性为主的炎症 多见于青壮年 起病急骤

(1) How do you understand the American’s smile? (2) What are the differences of smile between the American and Chinese?
答:The act of smiling is a universal form in nonverbal communication, but sometimes people from different cultural backgrounds treat a smile in different ways. It is usual for Americans to exchange smiles with complete strangers, which is a way to show their politeness and friendliness. (4分)This is especially true when the space is narrow and there are few or no other people around. For example, when an American gets in an elevator with one other person already in the elevator or when two strangers walk past each other in an empty hall, they are likely to exchange a brief smile or nod, or maybe even a quiet “Good morning” or other greetings. A smile to a stranger acknowledges the presence of the other. (1分) In Chinese society, people seldom smile at strangers. They usually show no facial expressions at all or pretend that the other person is not present. (4分)If someone smiles to you in China, you might assume that he is going to ask you to do him a favor or might think that there is something wrong with your appearance or dress.(1分)

甲公司发生的下列各事项中,属于或有事项的有
答:甲公司为其子公司的贷款提供担保 甲公司被其他公司起诉 甲公司起诉其他公司

证明论证无效是一种攻击()的方式
答:推理

纳西族的东巴文属于( )
答:原始的象形表意文字

相较于健康群体,易患病群体常见的临床表现是 ????。
答:记忆力变差 大脑退化提前

按钮常用于控制电路,色表示起动,色表示停止
答:绿 红

关于翻译终止的描述正确的是
答:所需的蛋白因子称为终止因子

做事要有毅力,不要因为事情很难或者麻烦而撒手不干。
答:Practise perseverance and never give up a thing because it is hard or inconvenient.

螺栓的强度计算公式( )。
答:σ≤[σ]

一只红色的酒杯被摔碎了,其中红色,酒杯,摔,碎了分别是()
答:属性,对象,方法,事件

小锣花鼓通常称作花鼓小锣,又称,一般为两人演奏,—人打鼓,一个敲锣
答:双条鼓