题目

如图，OP平分∠AOB，PB⊥OB，OA=8 cm，PB=3 cm，则△POA的面积等于． 答案：【答案】12【解析】试题分析：如图：过点P作PD⊥OA于点D，∵OP平分∠AOB，PB⊥OB，PB=3cm，∴PD=PB=3cm，∵OA=8cm，∴S△POA=OA•PD= ×8×3=12cm2，I was wandering around the Albuquerque airport. My flight had been , and I heard a(n) : “If anyone near Gate A-4 Arabic，please come to the gate immediately." Gate A-4 was my own gate. I went there. An older woman was , sitting on the floor. In her Arabic dress, she reminded me of my grandmother. “ to her,” the flight agent urged. “We told her the flight was going to be late, and she did this." I spoke to the woman in Arabic while putting my arm around her. She crying. It turned out that she thought the had been canceled. She planned to be in New York for some medical treatment the next day. I comforted her and suggested her family. We telephoned her son. In English, I told him that I would with his mother until we got on the plane. Then his son was . Next we called my dad. They spoke for a while in Arabic and that they had ten shared friends. After that, I called some Arabic friends I and let them talk to her. She was in a mood by then and took some homemade — little cakes stuffed with nuts and topped with sugar 一 from her bag and them to the people near the gate. To my amazement, no one . It was like a party. The traveler from Argentina, the mom from California, the lovely woman from Laredo — we were all smiling, enjoying the same . I looked around and thought, this is the world I want to live in. One with no . Everyone can be happy anywhere. 1.A. booked B. bought C. canceled D. delayed 2.A. announcement B. noise C. argument D. dialogue3.A. likes B. accepts C. understands D. studies4.A. reading B. weeping C. thinking D. begging 5.A. traditional B. long C. strange D. expensive6.A. Write B. Sing C. Apologize D. Explain7.A. quickly B. suddenly C. softly D. loudly8.A. started B. stopped C. kept D. avoided9.A. flight B. plan C. performance D. meeting 10.A. saving B. calling C. showing D. punishing 11.A. live B. work C. play D. stay 12.A. in action B. in charge C. in relief D. in trouble13.A. made sure B. found out C. agreed with D. gave up14.A. knew B. missed C. helped D. met 15.A. serious B. changing C. confident D. cheerful 16.A. chocolates B. wine C. bread D. cookies17.A. offered B. sold C. lent D. returned18.A. wasted B. refused C. ate D. saw 19.A. custom B. language C. apple D. sugar20.A. war B. argument C. worry D. quarrel