物体的初速度为2m/s,加速度为2m/s2,当它的速度增大到6m/s时,所通过的

题型:填空题

问题:

物体的初速度为2m/s,加速度为2m/s2,当它的速度增大到6m/s时,所通过的路程s=___m。

考点:匀变速直线运动的位移与速度的关系
题型:填空题

Are you having a nice time today? A famous thinker Francis Bacon told us: When you are living h 小题1:, tell your friends, then the happiness will double(双倍) ----b小题2: to you and to your friends; when you meet some p 小题3:  and feel lonely or helpless, also tell your friends, then your unhappiness will be h 小题4: , especially to you! Do you agree?

When you smile to others, others can feel your k 小题5: . If he or she is facing a d 小题6: time, the love perhaps will help them go through all the hard time. A smile really h 小题7:  great power.

W 小题8: will you do when someone smiles at you? Return a sweet smile. You also send your love through the smile. From it, you may get a t  小题9:   friend or a strong supporter. You are in great need of them today, t  小题10: and forever! So just try it, and then you will find a new and happy world.

题型:填空题

经测定一瓶气体中只含有C、H两种元素,通常情况下这瓶气体不可能是[ ]

A.一种化合物

B.一种单质和一种化合物的混合物

C.两种化合物

D.两种单质

题型:填空题

久病,舌淡而痿,为

A.热灼津伤
B.阴亏已极
C.气血俱虚
D.气滞血瘀

题型:填空题

司可巴比妥含量测定法

A.银量法
B.溴量法
C.熔点测定法
D.紫外分光光度法
E.碱水解后银量法

题型:填空题

听响法简便、灵活,所以沿用至今,但其只适用于()零件。

A.金属

B.非金属

C.大的

D.小的

更多题库