铝土矿的类型及主要成分是什么？

阅读下列短文，根据要求完成下列问题。

Dear Mike,

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

根据短文内容用适当的单词完成下面句子(每空一词)。

1. This letter is from Mike's                .

2. In Chicago, it is                now.

3. Mike's parents will go to his city by               .

4. His parents will come back on                31st.

5. Mike and his parents will                a nice dinner on Christmas Day.

All of the following must be performed during project initiating EXCEPT______.

A) identify and document business needs
B) create a project scope statement
C) divide large projects into phases
D) accumulate and evaluate historical information

整存整取定期储蓄存款的起存金额为（）。

A、人民币50元、外币等值50美元

B、人民币50元、外币等值100美元

C、本外币等值人民币100元

D、本外币等值人民币50元

吸入麻醉药临床评价有几方面。

天馈系统反射式互调直接影响基站小区上行干扰情况，反射式互调由天馈系统中的（）中最差组件决定。

A.分支器件

B.跳线

C.馈线连接器

D.馈线及天线