按照《建筑安装工程费用项目组成》(建标[2003]206号)的规定，规费包括( )

根据短文内容，用适当的单词完成下面句子。

Dear Mike,

     We got your letter yesterday. Yes, we can visit you at Christmas. We thought to spend Christmas at

home, but now we are going to be with you. Jack will not be in school then. The weather in Chicago is

cold, but it doesn't matter. Sometimes we like the snow. We got our plane tickets. We will get to your city

on the 18th. We will stay with you for two weeks. Is that all right with you? We'll take our favourite

recipes (食谱), so we can have a nice Christmas dinner.

      See you soon . 

                                                                                                                                    Love

                                                                                                                                    Mom and Dad

1. This letter is from Mike's _________.

2. In Chicago, it is _________ now.

3. Mike has a brother called __________. He is in school now.

4. Mike's parents will go to his city by _________.

5. His parents will come back on _________ 31^st .

在下列图象中，能正确表述物体做自由落体运动的速度-时间关系的是（　　）

A．

B．

C．

D．

           is no doubt           his bad performance has influenced his development.[ ]

A.It;that

B.There;that

C.It;whether

D.There;whether

在我国，依法设立的可经营证券业务的证券公司的主要业务有( )。

A．证券承销

B．融资融券业务

C．证券自营业务

D．投资咨询业务

现采用4级流水线结构分别完成一条指令的取指、指令译码和取数、运算以及送回运算结果4个基本操作，每步操作时间依次为60ns、100ns、50ns和 70ns。该流水线的操作周期应为(1)ns。若有一小段程序需要用20条基本指令完成(这些指令完全适合于流水线上执行)，则得到的第一条指令 结果需(2)ns，完成该段程序需(3)ns。在流水线结构的计算机中，频繁执行(4)指令时会严重影响机器的效率。当有中断请 求发生时，采用不精确断点法，则将(5)。

空白（1）处应选择（）

A.50

B.70

C.100

D.280