人剧烈活动后,隔一段时间血浆的pH会[ ]
A.大于7.35~7.45
B.远小于7.35~7.45
C.维持在7.35~7.45
D.稳定在3~4
答案:C
I haven’t read ____ of the articles carefully, but I find that there is a striking similarity between them.
A.each
B.either
C.any
D.both
在VGA显示器中,要显示256种颜色,则每个像素对应的显示存储单元的长度是 ()位。
A.16
B.8
C.256
D.1