A.keeps down blood pressure.
B.has similar effects to physical exercise.
C.decreases the heart rate.
D.increases stress.
A.is good for one's health.
B.is related to some illness.
C.has been investigated long since.
D.has no effect on the body.
开始考试点击查看答案A.He is designing jobs for the next generation.
B.He is preparing for the 'fly' stage.
C.He is doing something for the takeoff stage.
D.He is flying an aircraft.
开始考试点击查看答案A.10 years.
B.14 or15 years.
C.25 years.
D.50 years.
开始考试点击查看答案A.A big change in technologies and in the way of thinking.
B.A change in digitalisation.
C.A change in the way of manufacturing.
D.A change in the business cycl
开始考试点击查看答案A.Digital cameras will be cheaper than traditional ones in the near future.
B.Digital cameras and traditional cameras will co-exist for ever.
C.The prices of digital cameras will go down very soon.
D.Digital cameras will not take the place of traditional ones in the next few years.
开始考试点击查看答案A.It reduces pain,
B.It exercises the body.
C.it improves the body's immune system.
D.It can cure cancer.
开始考试点击查看答案A.laugh at their patients.
B.encourage their patients to laugh.
C.smile when they don't feel like laughing.
D.never stop laughing.
开始考试点击查看答案A.critical.
B.doubtful.
C.positive.
D.negativ
开始考试点击查看答案A.keep the plants warm.
B.prevent air pollution.
C.stop the greenhouse effect.
D.produce useful gases.
开始考试点击查看答案A.become warmer.
B.be much colder.
C.move more slowly.
D.move quickly.
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2013年安全工程师
类别:建筑类其它注册安全工程师注册安全工程师安全生产技术2013年安全工程师
类别:建筑类其它注册安全工程师注册安全工程师安全生产技术2013年安全工程师
类别:建筑类其它注册安全工程师注册安全工程师安全生产技术2012年注册安全工
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类别:建筑类其它注册安全工程师注册安全工程师安全生产技术2009年安全工程师
类别:建筑类其它注册安全工程师注册安全工程师安全生产技术2009安全工程师《
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