Don't be angry with the girl.She made the mistake ________. A.on purpose B.by accident C.in surprise D.at once
—Can we finish the work with ______ money and ______ people? —I'm afraid it's impossible. A. less; fewer B. few; less C. less; less D. fewer; fewer
如图,过点B(2,0)的直线l:交y轴于点A,与反比例函数的图象交于点C(3,n).、(1)求反比例函数的解析式;(2)将△OBC绕点O逆时针方向旋转α角
(本题满分12分) 如图所示,是圆O的一条弦,,垂足为,交圆O于点,点在圆O上.(1)若,求的度数;(2)若,,求的长.
随着经济的发展,能源和环境成为人们日益关注的问题. (1)煤、石油、天然气是生活中经常使用的燃料,其中天然气是较清洁的燃料.写出天然气主
I tried hard to get some information about the new technology out of his mouth, but he remained____________. A. quiet B. secret C. silent D. calm
制作洋葱表皮细胞临时装片有一下四步,制作的正确顺序是( ) ①从洋葱鳞片叶上撕下一块表皮,放在水滴中展平 ②在洁净的载玻片上滴一滴清