交互式教学的理论依据是（）。 A.建构主义理论 B.认知主义理论 C.行为主义理论

(一)
某东北管道加压泵站扩建，新增两台离心式增压泵。两台增压泵安装属该扩建工程的机械设备安装分部工程。泵安装前，班组领取了安装垫铁，未仔细检查，将其用于泵的安装。隐蔽前专检人员发现，有三组垫铁的规格和精度不符合要求，责成施工班组将此三组垫铁换为合格垫铁。在设备配管过程中，项目经理安排了4名持有压力管道手工电弧焊合格证的焊工(已中断焊接工作165d)充实到配管作业中，加快了管线配管进度。经过80d的努力，机组于12月中旬顺利完成单机试运行。单机试运行结束后，项目经理安排人员完成了卸压、卸荷、管线复位、润滑油清洁度检查、更换了润滑油过滤器滤芯、整理试运行记录。随后项目经理安排相关人员进行竣工资料整理。整理完的施工记录资料有：设计变更单、定位放线记录、工程分项使用功能检测记录。项目部对竣工资料进行了初审，认为资料需补充完善。
问题

Whenever the sun dropped and the blue sky came up, my father and I used to climb the mountain near my house. Walking together, my father and I used to have a lot of conversations through which I learned lessons from his experiences. He always told me, “You should have goals like climbing the mountain.” Without the mountain-climbing that we both enjoyed, we couldn’t have enough time to spend together because my father was very busy. I really got a lot from the mountain-climbing. It gave me time to talk with my father and to be in deep thought as well as develop my patience.

Once we climbed a very high mountain. It was so challenging for me because I was only ten years old. During the first few hours of climbing, I enjoyed the flowers and trees, and the birds’ singing. But as time passed, I got a pain in both of my legs. I wanted to quit climbing, but my father said to me, “You can always see a beautiful sky at the top of the mountain, but you can’t see it before you reach the top. Only there can you see all of the nice things, which is just like your life.”

At that time, I was too young to understand his words. But later after that, I got to know the meaning of hope in life. I found myself standing at the top of the mountain, and the sky was as clear as crystal.

小题1: The passage tells us that mountain-climbing was ______ for the father and the son.

A．hard

B．enjoyable

C．painful

D．comfortable小题2: The underlined word “crystal” in the passage means _______.

A．岩石

B．火焰

C．水晶

D．寒冰小题3: Which of the following is the closest in meaning to the father’s words in the second paragraph?

A．You will get all you need at the top of the mountain.

B．The sky is always as clear as crystal.

C．You can find life is full of nice things.

D．Never give up half-way.小题4: We can infer(推断) from the last paragraph that ______.

A．the writer was very successful in his life

B．the writer reached the top of the mountain

C．though the writer was young, he could understand his father

D．the writer used to stop half-way when he climbed the mountain小题5: The best title for the passage is ______.

A．Reaching the Top of the Mountain

B．Standing at the Top of the Mountain

C．Conversations between Father and Son

D．How to Get to the Top of the Mountain

下列现象不能用质量守恒定律解释的是

A．木材燃烧，余下灰烬的质量小于原木材质量

B．铜丝在火焰上灼烧，灼烧后的“铜丝”质量增加

C．加热高锰酸钾，剩余固体质量减少

D．将一定质量的水冷凝后结成冰，质量不变

PD最常见的初发症状是（）

A.震颤

B.肌张力增高

C.步行障碍

D.运动迟缓

E.面具脸

在项目评估报告的正文中，属于最后一项内容的是（）

A.项目概况

B.投资估算与资金筹措

C.财务基础数据估算

D.总评估