问题
填空题
已知△ABC的三个内角的度数之比为∠A：∠B：∠C=2：4：6，则∠A=（ ），∠B=（ ），∠C=（ ）．
答案
30°；60°；90°
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已知△ABC的三个内角的度数之比为∠A：∠B：∠C=2：4：6，则∠A=（ ），∠B=（ ），∠C=（ ）．
30°；60°；90°
| 词汇运用. |
| 1．I'm sorry,but I didn't mean to ________(使你心烦)． 2．Ignore the bell and go somewhere quiet to ________(使你朋友平静下来)． 3．Rescuers ________(关心) the safety of the men trapped in the fire. 4．We are surprised at ________(他对法律的忽视)． 5．Any student caught ________(作弊) in the exam will be punished. 6．The kids________(疯狂) when the film star appeared. 7．We ________(共有) the same interest and she ________(分担) my troubles as well. 8．The war brings so much ________(痛苦) that people are eager for peace. 9．Having done something wrong,he ________(不敢) go home. 10．The heavy snow prevented all the ________(与……的联系) the outside world. |