传送网可以分解为三个独立的层网络，不属于的是（）。 A.电路层网络 B.通道层网络

阅读理解。

    If you do not use your arms or your legs for some time, they become weak; when you start using them

again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that

memory works in the same way. When someone says that he has a good memory, he really means that he

keeps using his memory. When someone else says that his memory is poor, he really means that he does not

give it enough chance to become strong. 

    Have you ever found that some people can't read or write but they have better memories? This is because

they cannot read or write and they have to remember things; they cannot write them down in a little notebook.

They have to remember days, names, songs and stories; so they are using their memory all the time. 

    So if you want to have a good memory, learn from the people:practise remembering.

1．The main reason for one's poor memory is that ______.[ ]

A．his memory is not often used

B．he doesn't use his arms or legs for long

C．he has to remember too many things

D．he can't read or write at all

2．Some people can't read or write, but they usually have better memories, because ______. [ ]

A．they use their arms and legs more often

B．they can remember things more easily

C．they are better at learning from others

D．they have to keep their memories in more use

3．Which is the best title of this passage? [ ]

A．Don't Stop Using Your Arms or Legs.

B．How to Have a Good Memory.

C．How to Keep Your Body Strong.

D．Reading, Writing and Memory.

企业以高价格、低促销费用推出新产品，是（）策略。

A.快速掠取

B.缓慢掠取

C.快速渗透

D.缓慢渗透

某地区的全年财政收入完成6.97亿元，完成年度计划的110.6%，按可比口径计算比上年增长20.6%。其中营业税2.89亿元，增长18.9%，占全区财政收入的41.5%，拉动财政收入增长8个百分点；房产税1.2亿元，增长32.3%，占全区财政收入的17.2%，拉动财政收入增长5.1个百分点；增值税0.75亿元，增长3.2%，占全区财政收入的10.8%，拉动财政收入增长0.4个百分点；企业所得税0.71亿元，增长15.1%，占全区财政收入的10.2%，拉动财政收入增长1.6个百分点；其他科目合计1.42亿元，增长29.6%，占全区财政收入的20.3%，拉动财政收入增长5.5个百分点。

营业税和企业所得税一共拉动财政收入增长了多少个百分点( )

A．9.6
B．8
C．13.1
D．8.4

关于内雕水晶指甲的制作方法，下列说法正确的是（）。

A、应先用彩色水晶甲粉制作水晶指甲前缘并在整个指甲板上薄薄的铺一层底

B、应用白色水晶甲粉在整个甲板上铺一层底

C、应先用彩色水晶甲粉制作水晶指甲后缘并在整个指甲板上薄薄地铺一层底

D、应先用白色水晶甲粉制作指甲前缘

下列各组胶凝材料均是气硬性胶凝材料的是（）

A.石灰、石膏、水玻璃

B.石灰、水泥、水玻璃

C.石膏、水泥、水玻璃

D.石灰、水泥、石膏