【判断题】自持放电是指电子崩仅由电场的作用而自行维持和发展。 ( )
【单选题】读图知,组成该山体岩石的矿物直接来自______ ( )
【判断题】The basis of well-test analysis techniques for homogeneous-acting reservoirs is the line-source solution to the diffusivity equation.
【多选题】For the line-source well,what are the additional assumptions?
B.
Applicability of Darcy's flow
C.
The well has zero radius
D.
The well drains an infinite area
【单选题】The night before enrollment was to open for the University of Johannesburg a line of people more than a mile long formed outside the gates. When the gates opened, a stampede started, and a woman lost ...
A.
sed on the news clip above, the allocation of resources in made using
D.
first-come, first-served.
【判断题】For a given source voltage Vs and the magnitude of line current, the received voltage is higher for lagging loads and lower for leading loads.
【单选题】下列关于格式属性的叙述中,错误的是( )。
【单选题】以下代码的输出结果是______。 t=10.5 def above_zero(t): return t>0
【多选题】马克思主义哲学正确地阐明了实践的本质及其在认识世界和改造世界中的作用,创立了科学的实践观,社会生活的实践性表现在
A.
人类的产生、生存和活动,是以实践为基本方式和标志的
B.
在实践活动中,自然界分化成了自在自然和人化自然
【单选题】P22.下列关于格式属性的叙述中,错误的是