新型防空导弹“红旗-9”试射,导弹上升过程中,重力势能 _______ (选填“

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问题:

新型防空导弹“红旗-9”试射,导弹上升过程中,重力势能 _______ (选填“增大”、“减小”或“不变”),而其与空气摩擦导致内能 _______ (选填“增大”、“减小”或“不变”),此内能改变是通过 _______ 的方式实现的。

考点:物体内能的改变方法(做功、热传递)势能大小的比较
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苯甲酸雌二醇

A.四氮唑比色法
B.铁-酚试剂比色法
C.异烟肼比色法
D.气相色谱法
E.碘量法下列药物可采用的含量测定方法为

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A: Would you mind coming here, dear?
B: OK.I am coming right away. 【1】 
A: You see, there is lots of housework in the kitchen.
B:【2】 
A: Yes, you do. And you have to help me cook dinner.
B: OK. When I finish, could you help me with my homework?
A: Your homework? 【3】    
B: No,I haven't. It's too difficult for me.
A: 【4】   
B:Since breakfast.
A: You know, dear, I'm afraid I can't help you. I'II have to do some shopping after lunch.
B: But what about my homework?
A:I think you should make a telephone call to your friend, Jane,【5】 
B:That's a good idea.
小题1:
A.Are you busy'?B.What can I do for you?
C.What happened?D.I am busy with my homework.
小题2:
A.Do I have to wash the dishes?B.Nothing much.
C.What would you like me to do?D.Are you tired?
小题3:
A.DO you want to copy mine?B.Is it difficult for you?
C.I can't do your homework.D.Haven't you finished it?
小题4:
A.How long have you been doing your homework?
B.When did you start doing your homework?
C.How soon will you finish it?
D.Have you eaten lunch?
小题5:
A.She is a girl.B.I think she was good at playing tennis.
C.I think she can help you.D.What about copying her homework?
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手动关井时,先将远程控制台上的换向阀手柄迅速扳至()。

A、开位

B、关位

C、中位

D、任意位置

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俗称“茶托儿”、“酒托儿”,专门到网上“钓鱼”,一旦时机成熟就将被害人约至事先约定的地点高消费,骗取受害者钱财。这些骗子对受害人不用的手段是().

A.“体贴人微”

B.“循循善诱”

C.“善解人意”

D.“直截了当”

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队列研究的优点是什么?

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