糖尿病饮食治疗的每日总热量是由（）和（）来决定的。

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

   小题1:     ．For example，too many tourists can crowd public places that are  also enjoyed by the inhabitants of the country. If tourists  create too  much traffic，the inhabitants become annoyed and unhappy．They begin to dislike tourists and to treat them impolitely．They forget how much tourism can help the country’s economy．It is important to think about the people of a destination country and how tourism affects them．    小题2:     ．Tourism should also advance the wealth and happiness of local inhabitants．

    小题3:      ．If tourism grows too quickly，people must leave other jobs to work in the tourism industry．This means that other parts of the country’s economy can suffer．

     小题4:     ．Businesses can also lose money．It costs a great deal of money to build large hotels，airports， first-class roads，and other support facilities needed by tourist attractions. For example，a major international class tourism hotel can cost as much as 50 thousand dollars per room to build．If this room is not used most of the time，the owners of the hotel will lose money．

Building a hotel is just a beginning．There must be many other support facilities as well，including roads to get to the hotel，electricity，sewers(下水道)to handle waste，and water．    小题5:      ．If they are not used because there are not enough tourists，jobs and money are lost.

A．It is extremely important to develop tourism

B．Too much tourism can be a problem

C．Without proper planning, tourism can cause problems

D．All of these support facilities cost moneyE. Planning is of great importance to tourism

F. Tourism should help a country keep the customs and beauty that attract tourists

G. On the other hand, if there is not enough tourism, people can lose jobs

某学习小组将“从空气中制取氮气”作为研究课题，以下是他们的实验方案：

（1）除去二氧化碳和水蒸气：写出图1装置 A中发生反应的化学方程式______；

（2）除去氧气：他们分别收集一瓶（1）中得到的气体，用图2装置进行实验，其中甲同学选用红磷，乙同学选用木炭．你认为：选用______（填“红磷”或“木炭”）的方法不科学，原因是______；

（3）分析误差：此法得到的氮气密度与氮气的实际密度有误差，请你分析产生误差的可能原因（写两种）______；

（4）利用物质间某些性质的差异选用不同的方法将它们分离，是分离物质的基本思路．例如：在工业上，分离空气中的氮气和氧气是利用它们沸点的不同．请列举一种你所知道的利用物质性质差异分离物质的方法______．

（）多选用紫红、玫瑰红等颜色的指甲油。

A、化婚礼妆

B、化暖妆

C、化冷妆

D、中老年人

冷冻品类以甜为主，口味清香（），适用于午餐晚餐的餐后甜食或非用餐时食用。

A.冷

B.动

C.爽口

D.冰

我们可以通过（），建立充满生机和活力的管理新机制。

A.优化人才评价发现机制

B.改革人才选拔任用机制

C.健全人才流动配置机制

D.强化人才激励保障机制