有一大半球上口呈水平状态仰放在水平平台之上,垂直向的重心在高度的1/2处。
参考答案:对
动词填空(本大题共10分,每小题1分)
A year ______________ (divide) into 52 weeks.
The maths problem is not easy enough for each of us ______________ (work) out.
When I got to the station, my friends ___________ (wait) for me.
It’s silly of you ___________ (not forgive) others for their mistakes.
Most boy school students have their hair __________(cut) once a month.
I would rather sell the old house _____(buy) a new one.
You should be confident enough _________ (take) this job. You’re the most suitable person.
The pupils are having fun __ (make)cassettes..
Some day the scientist ____________ (clone) every living thing.
10. They_________(treat) well when they became sick.
人寿保险的保险事故是( )。
A.投保人的死亡或者生存
B.投保人的生命或者身体
C.被保险人的死亡或者生存
D.被保险人的疾病或者身体伤害