In the experiment of plant growth, what should you observe ___ you water the plants? A. before B. when C. since D. until 相关知识点: 试题来源: 解析 A。本题考查时间状语从句的语义理解。A选项“before”表示在之前,在给植物浇水之前进行观察是合理的。B选项“when”表示当的时候,这里强调浇水...
In a science experiment about plant growth, you want to know how often to water the plants. You ask your partner: "How often should we water the plants?" A. Maybe once a day B. We can water them every week C. I think twice a week would be good D. Water them E. very two ...
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During a scientific experiment on plant growth, if you want to find out the evidence for a certain theory, which of the following is a proper question? A. 使大为之时进最子使大为之时进最子Where are the measured data for it使大为之时进最子使大为之时进最子 B. 义毛也风全观打适求...
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Talking to plants makes them grow, especially if you ‘re a woman ,according to an experiment by the Ryal Horticultural Society(RHS皇家园艺学会).Women gardeners’ voices speed up growth of tomato plants much more than men’s, it found.In an experiment that ran over a month, they found tha...
You can’t see gamma rays with your eyes. They are much more energetic than the light that we can see. So you need a fancy detector to spot them. The Large High Altitude Air Shower Observatory, LHAASO, is an experiment in China. It searches for extremely high energy gamma rays. ...
An experiment is a test which will either challenge or support the hypothesis. The hypothesis will then be true or false. The final step is to think about what happened when you tested the hypothesis and draw a conclusion. The conclusion will either clearly support the hypothesis or it will ...
3.B 细节理解题.根据第六段"and the conditions for all the plants remained the same throughout the experiment"可判断选B. D项内容不符合"To ensure the experiment was fair,two control plants were also left to grow in silence.",此处的"in silence"只是不让它们听所录制的声音,并不是说它们听不...