检测读数为32.150和31.250，按规定要求保留三位有效数字，则应记录为（）。A

“二战”前夕，导致法西斯势力更加嚣张的最主要因素是[ ]

A．法西斯国家结成轴心国同盟

B．西方大国推行绥靖政策

C．两个战争策源地的形成

D．反法西斯国家缺乏统一行动

根据短文内容及首字母提示填空。

     Jerry and Carla were asked to choose a person for class president. As they looked t __1__ the list of

 kids in the room, they stopped at Tina's name. Tina had lots of ideas, and she n __2__ said unkind things

  about other people.

     "I r__3__ like Tina, and most of the classmates will accept her, I imagine," said Carla. "but she looks

  t__4__! She puts on too much makeup (化妆品), and she wears strange and u __5__ clothes.

 Sometimes she wears things that don't even f __6__ her."

     "Do you think we could get her to use 1__7__ makeup and never wear decent (讲究的) clothes?"

 Carla asked.

     "We couldn't. It would make us and her not feel c __8__ ,"replied Jerry. "She goes around w__9__ 

 high school girls, and she must know by now how she looks. My mother says it is wrong for eighth grades

  to look like those movie stars!"

     "Yes," Carla a __10__ ," and what will the teachers think if we suggest Tina?"

在我国入世的进程中，与美国的谈判尤其艰难，美方代表多方刁难，有一次，美方代表出言不逊：“我是在与小偷谈判。”作为我方代表的吴仪立即义正词严道：“我们是在同强盗谈判，请你们回去看看你们的博物馆里的展品有多少是从中国抢来的？”吴仪同志以实际行动捍卫了我们的[ ]

A、民族自尊心

B、民族自信心

C、民族自豪感

D、国家利益

下表为各物质中所含有的少量杂质以及除去这些杂质应选用的试剂或操作方法．正确的一组为（　　）

A．①②③④

B．②③

C．②③④

D．①②③

保护定值项有经方向闭锁的，应在备注栏说明（）要求。

A.方向指向

B.方向元件

C.闭锁

D.定值单号