【单选题】He mimicked her southern accent, which meant that ____.
A.
he laughed at her accent
B.
he praised her for the accent
C.
he made comments on her accent
D.
he copied the way she spoke
【简答题】1Cr18Ni9 在新标准的牌号是 15Cr18Ni9 ,它的平均含碳量是 ≤( )%; 0Cr18Ni9 在新标准的牌号是 08Cr18Ni9 ,它的平均含碳量是 ≤( )%
【判断题】Accent is an important marker of sociolect.()
【单选题】The accent East Londoners have is called ____.
【单选题】若三角形三边的长均能使代数式x 2 -9x+18的值为零,则此三角形的周长是( )