—I only got 20 percent of the answers right. That means one in every five.

—_____ You'll do better next time. [ ]

A. Never mind!  

B. Congratulations!

C. No way!      

D. Keep cool!

某字段中已经有数据，现要改变该字段的大小属性，将该字段大小重新设置为整数型，则以下所存数据会发生变化的是（ ）。

A．①②③④⑤⑥

B．①③④⑤⑥⑦

C．①④⑥⑦⑧⑨

D．①③④⑥⑦⑧