The company's exports have been increasing ____ (平稳地).
给划线的字选择正确的读音。
①允许____
A.nà
②云彩____
B.yǔn
③呐喊____
C.ná
④拿走____
D.yún
— The summer holiday is on the way. We'll have more freedom.
— . But we should learn to manage ourselves.
比15小6的数是____