脱式计算（能简便的请简便计算） (1)36+42+64+158(2)1600-2

Here is my idea about how a friend is like. Firstly, 61.______a friend is someone you can share your secrets. If you 62.______tell him a secret, never will he talks about it with anybody 63.______else. Besides, a friend is always good listener when you 64.______need one. After hear your sad stories, he will say some 65.______words that is nice and warm. Still, your happiness makes 66.______him happily, too. What’s more, a good friend is willing to 67.______offer the help to which you need, or can at least give you 68.______some advices. In a word, friends are those you like and 69.______trust, and you will enjoy every minute that you spent with 70.______them.

62().

充油电缆根据充油通道不同分为（）和钢管充油电缆两种。

某项目的招标人具有编制招标文件和组织评标的能力，则招标人( )。

A．可以采用直接委托方式发包
B．可以自行招标，但应当备案
C．可以自行招标，无需备案
D．必须委托中介机构代理招标

方程x²+2x+k=0有两个不相等的实数根，则k的取值范围是______．

铣刀的切削速度方向与工件的进给运动方向相反的铣前方式称为（）。

A.端铣

B.顺铣

C.逆铣