The phrase 'an important role in enlightening parents' in the third paragraph most probably means an important role in
A.causing parents to understanD.
B.persuading parents.
C.understanding parents.
D.discussing with parents.

未分类题By 'a customer order', the customer is most probably trying to getA.some goods from the factor.B.some money from the factor.C.some goods from the factor's client.D.some money from the factor's client.

单项选择题封闭宇宙的特点是（）A、不能接受外来物质和信息B、不能输出物质和信息C、膨胀到某一时刻开始收缩D、永远膨胀

未分类题Predictions of many robots in industry have yet come truE.For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productivE.The maker for 【21】______ robots is oversupplied now, and the driving force of the robotics (机器人学) revolution is 【22】______ to be with makers of machines that handle a few kilos at most.'Heavy-robot manufacturers are in some difficulty 【23】______ finding customer. They are offering big 【24】______ just to get in the door. There has been a 【25】______ growth everywhere in the numbers of robots, so we admit we are either deceiving 【26】______ or that the market is slowly growing. 'said John Reekie, chairman of Colen Robotics. 'The following things must happen 【27】______ the robotics revolution to occur. We must achieve widespread robot literacy, 【28】______ there has been a computer 【29】______ program, there must be a robot prices. 【30】______ , some kind of artificial intelligence needs to be 【31】______ .'Colen makes educational robots and machine tools. It is small 【32】______ with companies like ASEA or Fujitsu FanuC.But Colen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage 【33】______ . the giants. The big companies sell very expensive 【34】______ to businesses with expert knowledge in automation. The 【35】______ companies make robots for teaching people, and now they have realized that there is a need for small, 【36】______ robots that they can meet.The little companies either bring their educational machines 【37】______ an industrial standard or design from the start. One technique that they all adopt is to choose 【38】______ components where possiblE.The major cost of making 【39】______ their models is the electronics, which will fall in pricE.There is 【40】______ scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years.【21】A.smallB.educationalC.bigD.business

多项选择题根据主讲教师的讲解，下列选项中，属于朱熹主要哲学思想的是 A、格物致知 B、理一分殊 C、心统性情 D、居敬穷理 E、知行合一 F、天人感应 G、民胞物与 H、心即理

单项选择题方角柜柜身四边和腿足皆为曲圆，四条腿全用圆料制作。

未分类题在窗体上画一个名称为Command1的命令按钮，然后编写如下事件过程：Private Sub Command 1_ Click() Static y As Integer CIs For i=0 To 2 x=x +y y=y +3 Next Print x, yEnd Sub程序运行后，连续二次单击Command1按钮后，窗体上显示的是______。A.9 9B.36 18C.30 12D.63 27

未分类题编写如下事件过程：Private Sub Form_ KeyDown(KeyCode As Integer，Shift As Integer) If (Button And 3)= 3 Then Print 'AAAA' End IfEnd Sub程序运行后，为了在窗体上输出“AAAA”，应按下的鼠标键为______。D.按什么键都不显示

单项选择题RL串联电路的功率因数不一定小于1。 A、正确 B、错误

未分类题一台蒸发量D=4 t h的锅炉，过热蒸汽绝对压力P=1.37 MPa，过热蒸汽温度t=350℃，给水温度tgs=20℃。在没装省煤器时测得排烟损失q2=15%，燃料耗量B=950 kg h，收到基低位发热量Qar,net,p=18 841 kJ kg；加装省煤器后，排烟损失降为q2'=8.5%。假设其他各热损失不变，则安装省煤器后节煤量为( )kg h。A.70B.76C.80D.86

单项选择题A company has over absorbed fixed production overheads for the period by 8 per unit and is based on the normal level of activity of 5,000 units. Actual production was 4,500 units. What was the actual fixed production overheads incurred for the period?