A.dances
B.big shows
C.instruction
D.royal courts
A.famous names in ballet
B.how ballet has developed
C.Russian ballet
D.why ballet is no longer popular
开始考试点击查看答案A.recover from disease quickly
B.there is not enough hard evidence
C.use their minds actively
D.it improves general well—being
E.1isten to musical performances
F.it brings many other benefits
开始考试点击查看答案A.recover from disease quickly
B.there is not enough hard evidence
C.use their minds actively
D.it improves general well—being
E.1isten to musical performances
F.it brings many other benefits
开始考试点击查看答案A.recover from disease quickly
B.there is not enough hard evidence
C.use their minds actively
D.it improves general well—being
E.1isten to musical performances
F.it brings many other benefits
开始考试点击查看答案A.recover from disease quickly
B.there is not enough hard evidence
C.use their minds actively
D.it improves general well—being
E.1isten to musical performances
F.it brings many other benefits
开始考试点击查看答案A.Italy
B.Russia
C.America
D.France
开始考试点击查看答案A.Balanchine
B.Antoinette
C.Louis XIV
D.Diaghilev
开始考试点击查看答案A.is a dying art
B.will continue to change
C.is currently performed only in Russia
D.is often performed by dancers with little training
开始考试点击查看答案A.melatonin levels need to be raised
B.coffee is a stimulant
C.neurohormone can wake us up
D.caffeine can balance our brain hormone
开始考试点击查看答案A.It blocks production of the enzyme that stops melatonin production.
B.It interrupts the flow of the hormone that prevents people from sleeping.
C.It halves the body's levels of sleep hormone.
D.It stays in the body for many hours.
开始考试点击查看答案注册安全工程师注册安全工程师安全生产技术2011年安全工程师
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