A gas is any substance that is neither liquid nor solid, for example oxygen or hydrogen. 气体 Be made of这个句型,在日常生活中多使用,孩子就学会了。 比如: What is the table made of? 桌子由什么制造的? ——The table is made of wood. 桌子是由木头制造的。 What is this book made of? 书...
and Schubert, G.: 1974, Temperatures Inside Mars: Is the Core Liquid or Solid?, Geophys. Res. Lett. 1 , 157–160.Temperatures Inside Mars: Is the Core Liquid or Solid?. Young,R. E.,Schubert,G. Geophysical Research Letters . 1974Young R E,Schubert G. Temperature inside Mars:Is the ...
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Then I___my driveway when the warning light for my gas tank turned on.A.pulled into B.drove away C. ran across D.fount out解析:影响这个题目正确作答的关键是对空后面的driveway的含义的理解driveay指的是the hard area or road between y:our house and the street,(美)(从建筑物、车库等通...
Squirt fluid, by contrast, is now known to originate in the bladder, thanks to a fascinating 2022 study involving five women whose bladders were filled with an indigo liquid; when they got down to sexy stuff and squirted, the fluid was totally blue. You’re probably wondering then: Is ...
To have made the planet warm enough for liquid surface water, its atmosphere would likely have needed a large amount of greenhouse gas, carbon dioxide specifically. Currently, we don’t know the carbon dioxide content of Mars ancient atmosphere. So the researchers turned to the Nordlinger Ries ...
Knowing what water looks like on radar, scientists believe they found it underneath those ice caps — a mile beneath Mars’s surface. High salt content can keep the water liquid even at -90 degrees Fahrenheit, and NASA’sresearchsuggests Mars once had more water than the Eart...
After the structure cools, there's too little alcohol to recondense back into liquid, so it reverts to a gas. Check out your final product. What's left behind is a solid made of silica, but now filled with gas (air) where there was once liquid. Supercritical drying is how the ...
full of islands, most are planets like Mars and Venus, barren rocks or corals, where nothing grows and the elements kill you. Imagine boarding a generation ship to travel for 100 years or more, only to arrive at a new star and then you ...