【单选题】What can we learn from Servals words in Paragraph 3?
A.
You will find it enjoyable to see a dentist.
B.
You should see your dentist on a day-to-day basis.
C.
You can brush with the Kolibree as if guided by a dentist.
D.
You'd like a dentist to watch you brush your teeth every day.
【简答题】简要分析这首诗歌所抒发的感情。 查看材料
【简答题】这首诗体现了诗人怎样的诗歌追求? 查看材料
【简答题】某转轴由一对代号为 30312 的圆锥滚子轴承支承,轴上斜齿轮的轴向分力 Fx=5000N ,方向如图。已知两轴承处的径向支反力 F r1 =13600N , F r2 =22100N 。求两轴承所受的轴向力 Fa1,Fa2。( Fs=Fr/ (2Y) ,Y=1.7 )
【多选题】2001年新分类中,商用车下细分为( )。
【单选题】老师在教幼儿唱《小猫捉老鼠》这首歌时,假装自己是小猫边唱边跳,这是幼儿园音乐教育方法中的( )。
【单选题】对这首诗歌描绘错误的是()
B.
这首诗表达了人们热爱生活,热爱大自然的思想感情。
C.
这首诗歌中描写了泥路、小路、小草、小白菊等景物
【简答题】If you'd like, we will be very happy to arrange a visit to our factory. Thanks a lot. If I could stay here for a few days, I'd be to see you at your factory.
【单选题】听力原文:MB I'd like to return this shirt. I bought it here yesterday here's my receipt. WB May I ask what's the problem with it, sir? MB It has a hole in it. I haven't worn it, but I found a hole — here,...
【简答题】某转轴由一对代号为 30312 的圆锥滚子轴承支承,轴上斜齿轮的轴向分力 F x =5000N ,方向如图。已知两轴承处的径向支反力 F r1 =13600N , F r2 =22100N 。已知内部轴向力 , Y=1.7 。求轴承所受的轴向力 F a 。