题目内容

We can infer from the passage that the music "Lydian" sounds ______.

A. sad
B. bold
C. relaxed
D. simple

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What is the limitation of the rubidium method?

A. Rubidium is everywhere in the rock.
B. Strontium atoms are hard to detect at the normal temperature.
C. It cannot date sediments.
D. It is time-consuming.

Which of the following is the major factor that affects the accuracy of potassium dating?

A. the number of the mineral pores
B. the number of missing argon atoms
C. external temperature
D. mineral temperature

According to the passage, which of the following is closest in meaning to the concept "music" in Plato's philosophy?

A. muses
B. culture
C. manners
D. literature

The underlined word "cosmic" in the last paragraph is closest in meaning to ______.

A. radioactive
B. organic
C. terrestrial
D. universal

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