平均收益是厂商销售一定量产品时平均每一单位产品所得到的收入。( )
参考答案:对
My name is Becky Smith. I'm eleven years old. I have one brother. His name's Jason and he's fourteen. I don’t have any sister. We live with grandma in a small house in Chesterfield, in the north of England. My friends and I often go to the cinema on Saturday. Do you like games? I like football. My favourite team is Manchester Unite(曼联队). I sometimes play football with my brother. I have seven pets: two birds and five goldfish. I want a dog and a cat, but my parents don't like them.
Do you want to be my penfriend? Please write to me soon.
小题1:The girl wants to find .
A.a sister
B.a brother
C.a penfriend
D.pets小题2:The girl lives in .
A.a big house
B.The west of England
C.a small house
D.a cinema小题3:There are people in Becky's family.
A.three
B.four
C.five
D.six小题4:The girl's parents don't like .
A.birds and goldfishes
B.birds and dogs
C.dogs and cats
D.goldfishes and cats小题5:What does“pet”mean in Chinese?
A.朋友
B.宠物
C.玩具
D.同伴
依据《注册安全工程师管理规定》的规定,部门、省级注册机构自受理申请之日起 ( )日内将初步核查意见和全部申请材料报送安全监管总局。
A.10B.15C.20D.30