下列何种物质红细胞中含量比血浆中低()
A．Cr
B．LDH
C．AST
D．Hb
E．Ca
参考答案：E
下列选项中不是PowerPoint 2000提供的文件类型是（ ）
A．.ppt
B．.pot
C．.pps
D．.pts
–Lisa has made great progress these days.
--________, and ________.
A．So has she, so have you
B．So has she, so you have
C．So she has, so you have
D．So she has, so have you
