用8k×8位的存储器芯片组成容量为16k×16位的存储器，共需几个芯片？共需多少根地

小明的妈妈为了改善早餐的营养，买了一台全自动豆浆机，如图甲所示。图乙所示是豆浆机的主要结构：

中间部位是一个带动刀头电动机，用来将原料进行粉碎打浆；外部是一个金属圆环形状的电热管，负责对液体加热煮沸。上表是这个豆浆机的主要技术参数；如图丙所示是豆浆机正常工作做一次豆浆的过程中电热管和电动机交替工作的“P-t”图像。

请解答下列问题：

（1）豆浆机正常工作时的最大电流是        共消耗的电能是        J；

（2）在一次豆浆机工作的时候，小明将家里的其它用电器都关闭，他观察到豆浆机的电热管工作时，家里标有“1200r/kW·h”字样的电能表转盘在1min内转过了20转。此时电热管的实际加热是        W。

某工业企业本期营业利润为300万元，管理费用为15万元，投资收益为40万元，营业外支出10万元，所得税为40万元。假定不考虑其他因素，该企业本期净利润为( )万元。

A．180

B．250

C．200

D．350

下列使活化蛋白C转变为无活性的蛋白C的酶是（）

A.α2－抗纤溶酶

B.膜蛋白酶

C.α胰蛋白酶

D.纤溶酶

E.凝血酶

每年新发的慢性肾衰发病率为万分之一

阅读理解

根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项。

     Getting your children to study can be a little like getting them to eat their vegetables.

     __1__ Make a study time and have it at the same time every day.This will help your kids to learn to

schedule their day and will give them a sense of control over how they spend their time.

     Allow them to study in blocks of time, such as for half an hour with a fiveminute break in the middle.

__2__ Ideal(理想的) study times are after dinner or right after school before dinner.

     Never allow your children to study in front of the television, as that will encourage passive activity.

__3__

      You'll also need to help your kids find the right place to study.After you've set up a good study time

for little learners, set up a good place where they can get those creative juices flowing.

     __4__ Make sure there is a table or a desk and a comfortable chair.

     __5__ This includes helping them out with their homework sometimes and being there for them with

the answers to any questions. The input you give your children during study periods will help form a bond

and help make studying enjoyable.

A. Pick a place where your children can study properly.

B. Hold them to the schedule they create for themselves.

C. Finally, spend time with your kids when they're studying.

D. Keep the atmosphere light and offer lots of encouragement, too.

E. Instead, use TV as a treat or a reward when the homework is completed.

F. Try to stop this bad habit by offering some sort of reward.

G. One of the best ways to form good study habits for your kids is to design a schedule that they keep to.