—Would you please drive             ? My plane is taking off.

—I'd like to, but safety comes first. [ ]

A. faster

B. better

C. more carefully

D. more slowly

在Excel2000中，下列对于日期型数据的叙述不正确的是（）

A.日期格式有多种显示格式

B.不论一个日期值以何种格式显示，值不变

C.日期字符串必须加引号

D.日期数值能自动填充