砂轮()不得超过磨头铭牌上规定的尺寸。
A.外径
B.内径
C.直径
D.中径
参考答案:A
(2013·高考福建卷)The girl has a great interest in sport and ________ badminton classes twice a week over the last three years.
A.took
B.is taking
C.takes
D.has been taking
在电子表格MicrosoftExcel中,单元格中的公式可以复制。