先是英语:
1.He wanted to know___ ___ ___ ___good at swimming.
他想知道他父亲是否擅长游泳。
2.He jumped into the river___(save) the boy.
3.--Where is Damig?
--He___(go) swimming.He___(go) out five minutes ago.
4.--Have you watered the flowers yet?
--Yes,I___(water) them five minutes ago.
5.A number of students___already___(learn) to sperk foreign language.
数学的:
!!!!!!!!!!!!要过程!!!!!
1.在三角形ABC中,P是圆心,角BPC=140°,则叫A的度数是?
2.如图,圆P与扇形的半径OA,OB分别相切于点C,D,与弧AB相切于点E,已知OA=15cm,角AOB=60°,求阴影面积?
3.如图,在梯形ABCD中,AD//BC,角D=角C=90°,AE,BE分别平分角DAB,角ABC,以CD为直径的圆与AB像切吗?为什么?若以AB为直径做圆M,则圆M与CD有何位置关系?写出证明过程
哪位大侠有初三上学期化学,物理每个单元的幻灯片课件啊?施舍给我吧~~
谢谢啦,在线等!!辛苦,要是谁都做出来了,我就每天膜拜他~~~
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