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【简答题】
( )是世界上落差最大的峡谷之一。也是世界上最窄、最汹涌澎湃的大峡谷。
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举一反三
【多选题】2020年，甲国发射载人太空飞船到火星进行科研考察，甲国宇航员托杰和汤姆森两人最终登陆火星地表，在登陆的那一刻，托杰拿着甲国政府拟定的稿子向地球卫星电视全世界转播台宣布：“从今日起，火星是甲国的领土。”随后，汤姆森在火星的三个大峡谷的险要地带建立了小型核武器基地，并有约1000km2的火星地表土壤因为核辐射而退化销蚀。按照当代通行国际法理论和条约，下列说法不正确的是哪些?
A.
宇航员托杰的领土宣布符合先占原则，甲国对火星的占有是合法的
B.
宇航员汤姆森在火星上的行为违反了外层空间法的和平利用原则
C.
宇航员汤姆森在火星上的行为符合外层空间法的保护空间环境原则的要求
D.
由于宇航员托杰和汤姆森的行为违反了人类开发外空的原则，所以当其遇到危险时，不应当受到救援，这符合《关于各国探索和利用包括月球和其他天体在内的外层空间活动的原则条约》(1967)的基本原则
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
10,100.
B.
277.
C.
14.
D.
10.
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
its shapes are constantly changing
B.
it contains approximately 14 million tons of rock
C.
its eruptions have increased in recent years
D.
it is being eroded by toxic waste and pollutants
【单选题】Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant would in the Earth's suce, a visitor might assume that the canyon had been caused by some ancient convulsing (震动)．In fact, the...
A.
patterns of erosion in different mountain ranges
B.
forces that made the Grand Canyon
C.
the increasing pollution of the Colorado River
D.
the sudden appearance of the Grand Canyon
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
its shapes are constantly changing
B.
it contains approximately 14 million tons of rock
C.
its eruptions have increased in recent years
D.
it is being eroded by toxic waste and pollutants
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
Astronomy
B.
Botany(植物学)
C.
Geology
D.
Chemistry
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
相关题目：
【多选题】2020年，甲国发射载人太空飞船到火星进行科研考察，甲国宇航员托杰和汤姆森两人最终登陆火星地表，在登陆的那一刻，托杰拿着甲国政府拟定的稿子向地球卫星电视全世界转播台宣布：“从今日起，火星是甲国的领土。”随后，汤姆森在火星的三个大峡谷的险要地带建立了小型核武器基地，并有约1000km2的火星地表土壤因为核辐射而退化销蚀。按照当代通行国际法理论和条约，下列说法不正确的是哪些?
A.
宇航员托杰的领土宣布符合先占原则，甲国对火星的占有是合法的
B.
宇航员汤姆森在火星上的行为违反了外层空间法的和平利用原则
C.
宇航员汤姆森在火星上的行为符合外层空间法的保护空间环境原则的要求
D.
由于宇航员托杰和汤姆森的行为违反了人类开发外空的原则，所以当其遇到危险时，不应当受到救援，这符合《关于各国探索和利用包括月球和其他天体在内的外层空间活动的原则条约》(1967)的基本原则
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
10,100.
B.
277.
C.
14.
D.
10.
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
its shapes are constantly changing
B.
it contains approximately 14 million tons of rock
C.
its eruptions have increased in recent years
D.
it is being eroded by toxic waste and pollutants
【单选题】Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant would in the Earth's suce, a visitor might assume that the canyon had been caused by some ancient convulsing (震动)．In fact, the...
A.
patterns of erosion in different mountain ranges
B.
forces that made the Grand Canyon
C.
the increasing pollution of the Colorado River
D.
the sudden appearance of the Grand Canyon
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
its shapes are constantly changing
B.
it contains approximately 14 million tons of rock
C.
its eruptions have increased in recent years
D.
it is being eroded by toxic waste and pollutants
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
Astronomy
B.
Botany(植物学)
C.
Geology
D.
Chemistry
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
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