A:π4
B:3π4
C:π6
D:5π6
Be careful when you come _______ the street, because the traffic is very busy at the moment.
选择划线字的正确读音
降落(jiàng xiáng)____ 湖泊(pō bó)____ 种子(zhǒng zhòng)____
生根长叶(zhǎng cháng)____ 得意(dé děi)____ 落在湖泊里(lùo là)____
回答 (dá dā) ____ 骄阳似火(shì sì)____ 还要(huān hái yāo yào)____
甲,乙,丙,丁,戊与小强六位同学参加乒乓球比赛,每两人都要比赛一场,到现在为止,甲已经赛了5场,乙已经赛了4场,丙已经赛了3场,丁已经赛了2场,戊已经赛了1场,小强已经赛了( )