下列关于动机理论的描述，错误的是（） A.本能理论认为特定的活动是先天内在安排好的

任务型阅读。

     These are Lucy and Lily. They are twins. They are twelve. This is their bed room. There's a big desk

and a bed in it. There are some books and two pencil cases on the desk. Lily's sweater is green.It's on

the chair. Lucy's skirt is red. It's on the bed. Their trousers are on the bed, too. Lily's shoes are under

the desk. Lucy's hat is black. It's on the floor.

据短文内容，回答下列问题。

1. Where's Lily's sweater?

    _____________________

2. What color isLucy's skirt?

    _____________________

3. Are Lily's shoes bed?

    _____________________

4. What's on the floor?

    _____________________

5.  What color is Lucy's hat?

    _____________________

立式烟管废气锅炉中牵条管的作用是（）。

A．使封头不易外凸变形

B．减少烟管承受拉力

C．使锅壳不易变形

D．A和B

ECU点火输出回路的主要任务是将电流放大，同时也包括对点火线圈的最大初级电流进行限制调节。

关于超声传播速度的叙述中，正确的是()

A．声波在不同组织中传播速度相同

B．医用超声诊断设备中以脂肪组织中的声速设置速度标尺

C．组织密度越大，声速越小

D．组织硬度越大，声速越小

E．软组织中声速低于骨骼组织中声速

网管数据备份工具是哪个（）。

A.MansAdmin.exe

B.dtbackup.exe

C.WinMergE.exe

D.ChangeDatabasE.exe