【单选题】执行下面操作后,list2的值是: list1=['a','b','c'] list2=list1 list1.append('de')
【单选题】The author's assertions concerning the conditions that lead to the decay of the vacuum would be most weakened if which of the following occurred?
A.
Scientists created an electric field next to a vacuum, but found that the electric field was not intense enough to create a charged vacuum.
B.
Scientists assembled a super heavy atomic nucleus next to a vacuum, but found that no virtual particles were created in the vacuum's region of space.
C.
Scientists assembled a super heavy atomic nucleus next to a vacuum, but found that they could not then detect any real particles in the vacuum's region of space.
D.
Scientists introduced a virtual electron and a virtual positron into a vacuum's region of space, but found that vacuum did not then fluctuate.
【简答题】A schoolgirl saved her father's life by kicking him in the chest after he suffered a serious allergic (过敏的) reaction which stopped his heart. Izzy, nine, restarted father Colm's heart by stamping (踩) ...
【单选题】Passage Two. 听材料,回答下列各题:
A.
He suffered a nervous breakdown.
B.
He was wrongly diagnosed.
C.
He was seriously injured.
D.
He developed a strange disease.
【单选题】The first step was to ______ the agency, with the expectation that competitive markets would then develop.
【单选题】Despite their __________ of interest, Fleming kept trying to develop the chemical ___________ it would be safe and effective.
【简答题】The old man had no child so he suffered a lot from______(lonely).
【简答题】List 11 steps of international market research
【单选题】A) He suffered a nervous breakdown. B) He was wrongly diagnosed. C) He was seriously injured. D) He developed a strange disease.
A.
He suffered a nervous breakdown.
B.
He was wrongly diagnosed.
C.
He was seriously injured.
D.
He developed a strange disease.
【多选题】冯·诺依曼的主要贡献有哪些?
B.
存储程序,指令和数据保存在存储器中,顺序取出指令执行
C.
计算机硬件由运算器、控制器、存储器、输入设备和输出设备