What is the purpose of launching the AIM spacecraft?

admin2015-08-26 33

问题 What is the purpose of launching the AIM spacecraft?

The AIM spacecraft is scheduled for launch next Wednesday from Vandenberg Air Force Base in California. AIM stands for Aeronomy of Ice in the Mesosphere.(27)The craft will study mysterious ice clouds above Earth’s polar region—clouds that can be seen from Earth with the naked eye in the night sky. Little is known about these night-shining clouds, or the distant mesosphere, 80 kilometers above Earth’s surface where they form, except that they are changing. Some scientists believe it may be the result of human induced climate changes.

选项 A、To study the climate changes above Earth’s polar region.
B、To analyze the ice clouds within Earth’s polar region.
C、To analyze the climate changes within Earth’s polar region.
D、To study the ice clouds above Earth’s polar region.

答案D

解析

转载请注明原文地址:https://kaotiyun.com/show/cVXK777K

专业英语四级

相关试题推荐

随机试题

最新回复(0)

What is the purpose of launching the AIM spacecraft?

专业英语四级

Ofallthegoalsoftheeducationreformmovement,noneismoredifficultthandevelopinganobjectivemethodtoassessteachers

JamaileMorallywasaccusedofallEXCEPT______.

InthissurveywecangetallthefollowinginformationEXCEPT

From1946until1954,theVietnamesehadstruggledfortheirindependencefromFranceduringtheFirstIndochinaWar./Attheen

Atthebeginningofthepassage,theauthorindicatesthat_____.WhichtouristattractioniscitedforelaborationinParagra

Thetalkismainlyabout______.

Theconversationmostprobablytakesplace

Hewas______courteousandconsideratenomatterwhathappenedtohim.

Whathappenedinthe1950s?

DoyouknowTim’sbrother?Heis_____thanTim.

原子荧光仪器的原子化器高度指示的数值越大，原子化器的高度越()，氩氢火焰的位置越()。

工序

判断级数(a＞0，a≠e)的敛散性．

单元体的应力如图5－54所示，若已知其中一个主应力为5MPa，则另一个主应力为()。

坡率为1：1．5的稳定土质公路路基边坡，其坡面防护最适合()。

审批部门应当自收到环境影响报告表之日起______日内作出审批决定并书面通知建设单位。

旅游者要求换餐，须在用餐前()小时提出。

SDH的复用单元主要由()管理单元与管理单元组等模块组成。