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The fusion process of sun gave off ______.
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更多“The fusion process of sun gave off ______.”相关的问题
第1题
The author's main purpose in writing this passage is to ______ .
A．interpret the function of forgetting
B．illustrate the process of adapting
C．explain the performance of memory
D．emphasize the importance of learning
第2题
A.虚拟化层是自动绑定涉及的I/O操作的虚拟设备，服务和虚拟中断线程，并基于资源的NUMA节点进行分配
B.高精度虚拟机即高性能虚拟机，指对处理任务的性能和延迟抖动有严格要求的虚拟机。
C.DRS实时监控集群中每个计算节点的资源使用情况，引用VMOTION功能，智能迁移负荷高节点上虚拟机到资源充足的节点
D.DRS能够综合业务量和物理资源情况，合并虚拟机腾出空间主机以达到自动节能目的
第4题
For questions 1-4, mark
Y (for YES) if the statement agrees with the information given in the passage;
N (for NO) if the statement contradicts the information given in the passage;
NG (for NOT GIVEN) if the information is not given in the passage.
For questions 5-10, complete the sentences with the information given in the passage.
Earth's Beginnings: The Origins of Life
Earth is the only planet we know of that can support life. This is an amazing fact considering that it is made out of the same matter as other planets in our solar system, was formed at the same time and through the same processes as every other planet, and gets its energy from the sun.
To a universal traveler, Earth may seem to be a harmless little planet in the far reaches of one of billions of spiral galaxies in the universe. It has an average size star of average brightness and is joined by eight other planets—which support no known life forms—in its solar system.
However, Earth is a planet teeming with vitality and is home to billions of plants and animals that share a common evolutionary track. How and why did we get here？ What processes had to take place for this to happen？ And where do we go from here？ The fact is, no one has been able to come close to knowing exactly what led to the origins of life, and we may never know. After 4.5 billion years of Earth's formation and evolution, the evidence may have been lost. But scientists have made significant progress in understanding what chemical processes that may have led to the origins of life.
There are many theories, but most have the same general perspective of how things came to be the way they are. Following is an account of life's beginnings based on some of the leading research and theories related to the subject, and of course, fossil records dating back as far as 3.5 billion years ago.
Earth's Beginnings
Earth began to form. over 4.5 billion years ago from the same cloud of gas (mostly hydrogen and helium) and interstellar dust that formed our sun, the rest of the solar system and even our galaxy. In fact, Earth is still forming and cooling from the galactic implosion that created the other stars and planetary systems in our galaxy, a process which began about 16 billion years ago as the Milky Way began to form.
As our solar system began to come together some 6—7 billion years ago, the sun formed within a cloud of dust and gas that continued to shrink upon itself by its own gravitational forces. This caused it to undergo the fusion process and give off light, heat and other radiation. During this process, the remaining clouds of gas and dust that surrounded the sun began to form. into smaller lumps called planetesimals, which eventually formed into the planets we know today.
The Earth went through a period of catastrophic and intense formation during its earliest beginnings about 4.5—4.6 billion years ago. By 3.8 to 4.1 billion years ago, Earth had become a planet with an atmosphere (not like our atmosphere today!) and an ocean. This period of time of Earth's formation is referred to as the pre-Cambrian Period. The pre-Cambrian is divided into three parts: the Hadean, Archean and Proterozoic Periods.
Pre-Cambrian Period
The Earth formed under so much heat and pressure that it formed as a molten planet. For nearly the first billion years of its formation—called the Hadean Period (or "hellish" period)—Earth was bombarded continuously by the remnants of the dust and debris—like asteroids, meteors and comets—until it formed into a solid sphere, fell into an orb
A．Y
B．N
C．NG
第9题
A、Fusion insight Manager的web界面
B、Loader Web界面
C、Solrweb界面
D、YamWeb界面
