对付敌雷达侦察，可采用的方法有（）。 A.关机 B.增大发射功率 C.使用方向性好的

阅读对话，回答问题。

Jenny: Yesterday we bought gifts. Today we are putting up the Christmas tree. Tomorrow is Christmas. 

          We are going to open our gifts. Let's invite Danny to help us put up the tree.

Li Ming: Okay!

Jenny: Hello, Danny. Would you like to help us put up our Christmas tree?

Danny: Great!

Jenny: It's fun to put up a Christmas tree! First, we put on the lights. Then we put Christmas things on the tree.

           Hi, Danny! Would you like to put the star on the tree?

Danny: Yes, the star always goes on top!

Jenny: Now let's put our gifts under the tree. There! It's done!

Li Ming: It's beautiful!

1. What did Jenny do yesterday?

___________________________________________________________________

2. What are they going to do today?

___________________________________________________________________

3. Who are they going to invite?

___________________________________________________________________

4. Where does the star always go?

___________________________________________________________________

5. What's under the tree?

___________________________________________________________________

2008年以来，“我推荐、我评议身边好人”活动在全国各地持续深入开展，广大群众积极参与，推荐了一大批感人的好人好事，营造了找好人、学好人、评好人、争当好人的浓厚氛围。开展此类活动

①有利于引导人民自觉践行社会主义核心价值观     ②是民族振兴和社会进步的基石

③有利于深化精神文明创建活动，形成良好社会风尚 ④是社会主义道德建设的基本任务

A．①②

B．①③

C．②④

D．③④

当时间数列中的指标数值存在负数时，不宜采用水平法计算平均发展速度，因为计算结果（）。

A.可能为负数

B.必然为负数

C.可能为虚数

D.等于零

E.必然为正数

短发修剪时，将发长做自然下垂，沿耳朵做修剪，修剪出（）。

A.鬓发轮廓线

B.鬓发边线

C.鬓发形体

D.鬓发层次

下列选项，( )不属于会计核算的基本前提。

A．会计主体
B．持续经营
C．会计分期
D．权责发生