在1×2×3×4×5×…×99×100的积中,从右边数第20个数字是____ .
What happened?
____ hit an old man.
Where did the accident happen?
On ____
Who sent the man to the hospital?
____
Is the traffic busy now?
What's the suggestion of the reporter?
To go____.
在物理学的发展过程中,下列物理学家都做出了杰出的贡献,其中发现了电磁感应现象的是