[单项选择]What Is the Coolest Gas in the Universe What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was-91℃，which (51) in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in (52).Temperatures in Earth orbit actually range from about+120 ℃ to-120 ℃ .The temperature depends upon (53)you are in direct sunlight or shade.Obviously，-120℃ is colder than our body can (54)endure. The space temperatures just discussed affect only our area1 of the solar (55).Obviously，it is hotter closer to the Sun and colder as we travel （56）from the Sun. Scientists estimate temperatures at Pluto are about-210℃.How cold is the lowest estimated temperature in the entire universe Again，it depends upon your (57) .We are taught it is supposedly (58)to have a temperature below absolute zero，which is-273℃，at which atoms do not move. Two scientists，whose names are Cornell and Wieman，have suc
A. would
B. will
C. must
D. need

[单项选择]What Is the Coolest Gas in the Universe What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was-91℃，which (51) in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in (52).Temperatures in Earth orbit actually range from about+120 ℃ to-120 ℃ .The temperature depends upon (53)you are in direct sunlight or shade.Obviously，-120℃ is colder than our body can (54)endure. The space temperatures just discussed affect only our area1 of the solar (55).Obviously，it is hotter closer to the Sun and colder as we travel （56）from the Sun. Scientists estimate temperatures at Pluto are about-210℃.How cold is the lowest estimated temperature in the entire universe Again，it depends upon your (57) .We are taught it is supposedly (58)to have a temperature below absolute zero，which is-273℃，at which atoms do not move. Two scientists，whose names are Cornell and Wieman，have suc
A. operated
B. occurred
C. opened
D. offered

[单项选择]
What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was -91℃ which (51) in Antarctica in 1983.
We encounter an interesting situation when we discuss temperatures in (52) . Temperatures in Earth orbit actually range from about +120~C to -120~C. The temperature depends upon (53) you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space (54) that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our area of the solar (55) . Obviously, it is hotter closer to the Sun and colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire uni
A. and
B. though
C. but
D. so