在△ABC中，∠A，∠B都是锐角，tanA=1，sinB= 22 ，你认为△ABC最确切的判断是_刷题宝

题干

在△ABC中，∠A，∠B都是锐角，tanA=1，sinB=

2

2

，你认为△ABC最确切的判断是（）

A：等腰三角形

B：等腰直角三角形

C：直角三角形

D：锐角三角形

上一题下一题 0.0难度选择题更新时间:2017-10-10 09:34:29

答案(点此获取答案解析）

B

同类题1

阅读图文材料，回答下列要求。

红枣素有“木本粮食”之称，性温、味甘、维生素含量高，为果中之王。具有很高的营养价值。枣树是温带核果类植物，适应性强，喜温暖，耐旱涝，在山地、平原、河滩、沙地均可种植，以土层深厚、沙质土壤最好。下图为新疆红枣主产区分布图。新疆红枣因其个大核小，含糖量高，不裂果，迅速占领红枣市场。

同类题2

You _____ be tired; you have been working for so long a time,
but he _____ be tired; he has just begun to work.

同类题3

阅读理解。根据材料内容判断正误。

What did you do last Saturday?

Jim：I read books in the library. It isn't near my house. I had to go there by bus.

Mike: I had a Chinese class. The school isn't far from my home. I walked there.

Anna: I played in the park. The park is very far. So I rode a bike there.

Mary: I met some friends at the train station. It is very far and I took a taxi there.

John: I went on a trip to New York. It is 400 kilometers away from my city, so I went there by train.

同类题4

下列各句中，加点的词语运用正确的一项是

同类题5

某同学用称量为500克,最小刻度为0.2克,最小砝码为5克的托盘天平称量一铁块的质量,当调节衡量平衡后,他将铁块放在天平的右盘,砝码放在天平的左盘,同时移动游码,当天平平衡时,他读出铁块质量是75.2克，则铁块实际质量是（）

小学学科试题库

初中学科试题库

高中学科试题库