圆筒轴承的特点是什么?
参考答案:
承载能力小,比压小,稳定性较差,通常用于小轴颈转子上。
根据中文提示补全句子(每题1分, 共计10分)
小题1:After ___________ _______ the college, I worked in the school.(毕业于)
小题2:I was ______________ _____ become a famous writer.(决心)
小题3:What’s your __________ _________ this idea?(对……的态度)
小题4:He won’t __________ ______ _______ the enemies.(向……屈服)
小题5:Miller is a ___________ man and I think you can rely on him.(可信赖的)
小题6:His mother was __________ _____ hear the news.(震惊)
小题7:They _________ ___________ ______ the burning building
yesterday.(被困在…中)
小题8:The suffering of the people was ______________.(极度的)
小题9:___________ from his look, he doesn’t think much of the plan.(判断)
小题10:I can’t ____________ how greatful I am to you .(表达)
某校生物研究性学习小组的同学在进行遗传病调查时得到下列遗传系谱图。请据图回答(显性基因用A表示,隐性基因用a表示):
Ⅱ9的基因型是()或(),它是携带者的可能性是()