皮皮学，免费搜题
登录
搜题
【多选题】
下列关于导热数值计算问题的说法正确的是( )。A.
数值求解导热问题的关键是区域离散和方程离散。
B.
向前差分和差分的截断误差均为一阶。
C.
系数矩阵主对角占优是常物性导热问题所组成的差分方程组迭代过程收敛的必要条件。
D.
一维平板非稳态导热的显式格式离散方程在任何条件下都是稳定的。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【多选题】劳动力是一种特殊的商品。以下关于劳动力商品说法正确的有( )
A.
劳动力商品的市场价格和供求关系无关
B.
劳动力自身的价值在消费过程中能转移到新产品当中
C.
劳动力商品的使用价值是价值的源泉
D.
劳动力价值的构成包含一个历史和道德的因素
【简答题】Listen carefully and answer the followin questions.
【单选题】Silver is the best conductor of electricity, copper ______ it closely.
A.
followed
B.
following
C.
to follow
D.
being followed
【简答题】Directions: In this section you are required to write an essay in accordance with following requirements. A. Title: Scientific Discovery-Curse or Blessing B. Time limit: 40 minutes C. Word limit: 180—...
【简答题】构件是 的单元体,而零件是 的单元体。
【单选题】According to the passage, theorists throughout history have considered all of the following as possible reasons for the ornamentation of male plumage EXCEPT
A.
Adornment attracts females on the basis of unconscious aesthetic preferences, increasing their evolutionary advantage.
B.
Adornment attracts females to males who resemble their preferred food source, thus contributing to the mating process.
C.
Adornment among males signifies heightened physical activity to females, thereby indicating evolutionary superiority.
D.
Adornment reduces the amount of energy necessary to frighten rival males, thereby conserving resources.
E.
Adornment in plumage frightens rivals away from a limited food source, thereby ensuring a dominant male's survival.
【单选题】Which one of the followin belongs to inorganic growth?
A.
customer base expansion
B.
new product development
C.
taking-over a new business
相关题目：
参考解析：
知识点：
题目纠错 0
发布
