A.卷曲率減小B.卷曲率增大C.卷曲率不變D.卷曲數(shù)增大
A.超倍長(zhǎng)B.卷曲率C.強(qiáng)度D.疵點(diǎn)
A.大B.小C.不變D.有時(shí)大有時(shí)小