极限频率越大,逸出功一定越大!
W逸=hν极
猜你喜欢
- 1完形填空:Sports in our school change a lot.Now we have more than 20 minutes' r_1 after the
- 2在三角形ABC中,a+b=2c,∠A—∠C=60°,就sinB等于多少
- 3(A) Look at the child over there.H______name is Jim Green.He is an English b___.He is my n_______
- 4△abc 中,b=30,C=45,a=b,求bc 边
- 5It's impossible for me to do it,_______?
- 6河水哗哗地流着(改成拟人句)
- 7I have just received a letter from my brother.(同义句)=I have just ____ ____ my brother.
- 8微生物的代谢调节有何特点?
- 9底面周长是50.24厘米,高是10厘米,表面积
- 10试用平面图形的面积来解释恒等式(a+2b)(a-2b)=a^2-4b^2(其中a>0,b>0)