【单选题】From the author's experience given in the last paragraph, we can conclude that to be a good matchmaker, sometimes it is better for one to be ______.
【单选题】The little girl in the 'whisper test'______.
A.
had her bad ear shut completely
B.
had her good ear shut completely
C.
could hear the teacher with her good ear
D.
couldn't hear the teacher at all
【判断题】误码率是衡量数据在规定时间内数据传输精确性的指标。A. 对 B. 错
【单选题】在杜牧的《清明》这首诗中包含了哪两个韵?( )
【多选题】学习的心理基础包括智力因素和非智力因素,其中非智力因素指那些不直接参与认识过程,但对认识过程起直接制约作用的心理因素。以下哪些选项符合非智力因素的定义范畴
【简答题】今年5月25日,一年一度的昆嵛山樱桃节又拉开了帷幕.樱桃味美多汁,又是自然状态下上市最早的北方乔木水果,因此号称“春果第一枝”.俗话说“樱桃好吃树难栽”,可是近几年,昆嵛山上却成功地栽植了大片樱桃树,满足了大量游人采摘和购买的需要.这些樱桃树是怎样栽培的呢? 以下是果农常采用的栽培方法: A、选择培育砧木,砧木应为寿命长、抗逆性强的品种(如大叶草樱桃). B、选择培育嫁接苗.嫁接苗应为优良品种(如...
【单选题】( 2019 内蒙古包头 ) 果农将鸭梨以杜梨作为砧木来嫁接繁育 , 下列有关叙述错误的是
B.
嫁接是无性生殖的应用,可提早获得与鸭梨品质一致的果实
C.
嫁接苗成活后,结出果实和种子的生殖方式属于有性生殖
【单选题】We had to learn to work with others and many of our own ideas had to be ______ for the good of the whole.