【单选题】下列关于生殖发育的叙述,正确的是 1马铃薯块茎繁殖属于无性生殖 2水稻个体发育的起点是种子 3果树嫁接成活的关键是接穗与砧木的形成层是否紧密结合 4求偶、交配、筑巢、产卵、孵卵和育雏都属于鸟类的繁殖行为 5雌雄蛙通过抱对完成体内受精 6人的生殖过程中,受精卵的形成和胚胎发育都在子宫内完成
【判断题】多媒体存储技术、多媒体压缩技术、虚拟现实技术都是多媒体关键技术。
【判断题】促使果树嫁接成活的关键组织是木质部。( )
【简答题】She is a music lover, _____________________?
【简答题】—What does your friend look like? — . A .He is tall. B. She is a kind girl. C .She likes music. D She has good looking.
【单选题】What is Alice's hobby? [ ]
B.
She is listening to music.
C.
She goes to work by car.
【单选题】She is very good at playing ___ piano and now she is teaching ___ piano at a music school.
【单选题】QR的( )要求供应商更快、更频繁地运输重新订购的商品,以保证店铺不缺货,从而提高销售额。