用物理、化学及生物等方法，使室内空气中的含菌量尽量减少到无尘、无菌状态，称为机械除菌。（）
参考答案：错
Signnatel Inc, _________ world's largest maker of controller chips for MP3 players, is said to establish ___________ new R & D centre in Hong Kong and open two sales offices on Chinas mainland.
A．the; a
B．the; the
C．a; the
D．a; a
膀胱镜检查常见的并发症不包括（）
A.发热
B.血尿
C. * * 损伤
D.膀胱损伤
E.排尿困难
