A:i>100,n=n+1
B:i>100,n=n+2
C:i>50,n=n+2
D:i≤50,n=n+2
在测量铁的密度中,若铁块用较粗的棉线扎好放入盛水的量筒中时,会造成( )
①绳子上系____(A.xì B.jì )着铃铛
②把蝙蝠的耳朵塞____(A.sāi B.sè)上
①Excel ②FrontPage ③Access ④PowerPoint( )