平面悬臂桁架所受的荷载如图所示，求杆3的内力为（）。 A．F3=-2.667F(压)

阅读短文，根据要求完成下面各小题。

Too many people want others to be their friends, but they don’t give friendship back. This is why some friendships don’t last long .To have a friend, you must learn to be a good friend. Learning to be a good friend means learning three rules: be honest; be generous; be understanding.

Honesty is where good friendship starts. Friends must be able to trust(信任)one another. They should tell the truth. If you aren’t honest, you’ll lose your friend’s trust. (1)A study shows that those who often tell lies can’t get on well with the other people. Good friends always depend on one to speak and act honestly.

Generosity makes a friendship grow well. It means sharing. You do not have to give your lunch money or your clothes. Naturally you want to share your ideas and feelings. These can be very valuable to a friend. They tell your friend what is important to you. By sharing them, you help your friend know better.

Sooner or later everyone needs understanding and help with a problem. Something may go wrong at school. Talking about the problem can make it easier to solve. Turning to a friend can be a first step in solving the problem. So to be a friend, you must listen and understand．(2)Try to put yourself in your friend’s place, or you can’t understand the problem better.

Now, do you know what you should do if you want to be a good friend and keep your friends?

小题1:将(1)句译成中文

小题2:将(2)句改成一个含有if从句的句子。

小题3:回答问题：What can be a first step in solving the problem according to the passage?

小题4:在文中找出与Being generous helps make a friendship go forward. 意思相近的句子，并将它写在答题纸上。

小题5:在文中找出最能表达该短文主题的句子，并将它写在答题纸上。

下列现象中不属于物体受力发生形变的是[ ]

A、用手将弹簧压缩

B、射箭运动员拉开弓

C、撑竿跳高运动员将杆压弯

D、汽车受牵引力而加速前进

对原始记录和数据处理的管理应符合以下要求（）

A.机构应按规定的期限保存原始记录，并按规定保留出具的各类证书和报告的副本

B.记录应包含足够的信息，并包括负责执行人员和结果核验人员的签名

C.观测结果、数据和计算应在固定的记录纸上记录，并能按照特定的任务分类识别

D.当在记录中发生错误时，对每一错误应划改，不可擦掉或涂掉

工业企业能源消费包括（）。

A.用于本企业产品生产、工业性作业和其他生产性活动的能源

B.用于劳动保护的能源

C.回收利用的余热、余能

D.调拨到外单位，委托外单位加工用的能源

E.调出本单位或借给外单位的能源

下列关于改革、发展、稳定关系的说法中，正确的是（）。

A.改革是动力，发展是前提，稳定是目的

B.改革是动力，发展是目的，稳定是前提

C.改革是目的，发展是动力，稳定是前提

D.改革是前提，发展是动力，稳定是目的