题目

下列推理中，错误的是( )A. ∵∠A＝∠B＝∠C，∴△ABC是等边三角形B. ∵AB＝AC，且∠B＝∠C，∴△ABC是等边三角形C. ∵∠A＝60°，∠B＝60°，∴△ABC是等边三角形D. ∵AB＝AC，∠B＝60°，∴△ABC是等边三角形 答案：【答案】B【解析】A∵∠A＝∠B＝∠C，∴△ABC是等边三角形，故正确；B条件重复且条件不足，故不正确；C∵∠A＝60°，∠B＝60°，∴∠C=60°，∴△ABC是等边三角形60°，故正确； D根据有一个角是60°的等腰三角形是等边三角形可以得到，故正确.故选B. Choose the best choice from A, B or C according to what you read.   (    )1. If the Jacksons want to have dinner together this week, they can go to _______.         A. Anchor on Tuesday            B. Robert’s Restaurant at 10:30 pm C. Anchor on Saturday (    )2. You can go to Robert’s Restaurant when you are in _______. A. Australia             B. Britain           C. France (    )3. Which of the following information can NOT be found in the two pictures?         A. Which day Anchor is closed?     B. Anchor ’s phone number.         C. Robert’s Restaurant’s opening time. (    )4. Anchor is known for _______. A. its homemade meals           B. its service for parties  C. the Gardiner’s Corner (    ) 5. What are these two pictures? A. Tickets               B. Menus            C. Advertisements