A:②③④⑥
B:①④⑤
C:①③④⑥
D:①③⑤
单词分类。请将单词或短语按要求分类,(只写序号)1 read comics 2 chew gum 3. short 4 get up early 5 medium build6 play on the swim team 7 sleep with light on 8 play games 9 straight hair 10 heavy 11 watch TV 12 thin 13 paint pictures 14 attend gym class 15 eat candy(1)容貌外表____ (2)生活习惯____ (3)活动爱好____
农民种水稻的田里经常长一种叫“稗”的杂草,在相同条件下,其种子的萌发率比水稻高,长势好,成熟早,因此,很难把它从水稻田里驱除干净.从中可以得知,稗和水稻之间的关系是( )
一个油箱,从里面量长0.4m,宽0.3m,深0.5m.这个油箱能装油多少升?如果每升油重0.82千克,这个油箱能装油多少千克?
(Ⅰ)求{an}的通项公式;
(Ⅱ)若S3,S9,S6成等差数列,求证:a2,a8,a5成等差数列.
个三角形,那么这个多边形是____边形.