When doing a chemical reaction, we often observe the change of ___. A. temperature B. pressure C. color D. all of the above 相关知识点: 试题来源: 解析 D。解析:在化学反应中,我们经常会观察到温度、压力和颜色等的变化。反馈 收藏
When we do scientific research, we can observe the phenomena through ___. A. peering B. gazing C. observing D. scanning 相关知识点: 试题来源: 解析 C。“peering”是窥视的意思,“gazing”是凝视的意思,“observing”就是观察的意思,符合题意,“scanning”是浏览、扫描的意思。反馈...
When we observe the growth of plants, we can use a ___ to measure the height. A. ruler B. tape C. scale D. meter 相关知识点: 试题来源: 解析 A。“ruler”尺子;“tape”磁带、胶带;“scale”秤、刻度;“meter”米、仪表。测量植物高度用“尺子”,“ruler”最合适。反馈 ...
When doing a science experiment, we observe the phenomenon carefully. Then we record what we see. What is the purpose of recording? A. To remember the results. B. To share with others. C. To analyze later. D. To prove our hypothesis. ...
A. The height of the plants. B. The color of the leaves. C. The number of flowers. 相关知识点: 试题来源: 解析 A。观察植物生长时,首先应关注植物的高度(The height of the plants.),这能直观反映生长情况。反馈 收藏
When we do the experiment to observe the temperature change in the atmosphere, we find that the temperature rises with the increase of altitude in this layer. Which layer is it? A. Troposphere B. Stratosphere C. Ozone layer (which is part of the Stratosphere) 相关知识点: ...
When we are doing an experiment to observe the growth of plants, we first need to ___ the seeds in the soil. A. cut B. plant C. water D. harvest 相关知识点: 试题来源: 解析 B。解析:在观察植物生长的实验中,首先要把种子种到土壤里。选项A切不符合种种子的操作。选项C浇水是在种种子之...
When we do an experiment,we often use a ___ to observe small things. A. compass B. thermometer C. microscope D. telescope 相关知识点: 试题来源: 解析 C。“microscope”是显微镜,做实验时我们经常用显微镜观察微小的东西。“compass”是指南针;“thermometer”是温度计;“telescope”是望远镜,都不符...
B。当我们想观察天体的运动时,使用望远镜并在不同时间记录位置(Use a telescope and record the positions at different times)是一个好方法。用肉眼长时间观察(Observe with the naked eye for a long time)很难准确观察到天体的运动。显微镜(Use a microscope)不适合观察天体运动。双筒望远镜(Use binoculars)对于...
When doing the experiment, we use a(n) ___ to observe small things. A. microscope B. telescope C. camera D. computer 相关知识点: 试题来源: 解析 A。“microscope”意思是“显微镜”,用于观察微小的东西,B 选项“telescope”是“望远镜”,用于观察远处的物体,C 选项“camera”是“照相机”,D 选项...