Making a hypothesis C. Identifying the problem D. Analyzing results 相关知识点: 试题来源: 解析 C。本题考查科学实验的步骤。科学实验的第一步是确定问题,所以答案是 C。A 选项收集数据是在实验过程中进行的;B 选项提出假设是在确定问题之后;D 选项分析结果是实验的最后一步。反馈 收藏 ...
A. experiment B. investigation C. observation D. discovery 相关知识点: 试题来源: 解析 B。A 选项“experiment”是实验;B 选项“investigation”是调查,科学调查的第一步是提出问题;C 选项“observation”是观察;D 选项“discovery”是发现。反馈 收藏 ...
The two-slit experiment has actually been done, giving the results that we will describe here.#An electron leaves the electron gun at some point in time and it later appears at some place on the detector. It is going to land at some place whereP(x)is not zero; say it lands atx= ...
Form a hypothesis C. Analyze results D. Design the E. xperiment 相关知识点: 试题来源: 解析 B。本题考查科学实验的步骤。首先形成假设是科学实验的第一步,A 选项“收集数据”通常在实验过程中进行,C 选项“分析结果”是实验后期的工作,D 选项“设计实验”一般在形成假设之后。反馈 收藏 ...
A. doing an experiment immediately B. having an idea or question C. writing a report D. showing off to others 相关知识点: 试题来源: 解析 B。科学研究的第一步通常是有一个想法或问题。选项 A“doing an experiment immediately”立即做实验,错误;选项 C“writing a report”写报告,不是第一步;选...
Esteban observed, “Every time that we take another step in this journey, the energy that we gain back from our staff and the feedback that we get from our leaders is just so immense. We’re energized to do even more to continue seeing progress and feeling its effects.” ...
provides a reasonable description of the trends in the masses of the oxygen isotopes. However, as may be seen in Fig.3, it predicts slightly higher27,28O energies (about 1 MeV) than found in the experiment. The calculated sum of the occupation numbers for the neutronpf-shell orbitals is...
The text said that the first step in the scientific method is to ___. A. make a conclusion B. conduct an experiment C. ask a question D. analyze the data 相关知识点: 试题来源: 解析 C。文中表明科学方法的第一步是提出问题,C 选项符合文中所讲。反馈 ...
In a scientific experiment, the probability of success on the first trial is 0.3. If the first trial fails, the probability of success on the second trial is 0.4. What is the probability of success on the second trial given that the first trial fails? A. 0.3 B. 0.4 C. 0.7 D. 0.12...
The successful flight of Taiji-1 has verified the feasibility of the three-step plan of Taiji. Encouraged by the achievement of Taiji-1, the Taiji scientific collaboration is looking forward to flying Taiji in early 2030s. It is our optimistic expectation that LISA and Taiji will be both orbi...