用已调好的托盘天平测量物体的质量时,应将砝码放在天平的____盘,天平平衡时使用砝码的情况和游码在标尺上的位置如图所示,则被测物体的质量为____g.
Boboften____hismotherwiththehouseworkonSundays.
句子翻译:让我一个人待着,以便我能想出一个好主意。
-DidyouhearthatJohnlosthisjob?
-It_______thathehadmadesomeseriousmistakesinhiswork.
Ladiesorgentlemen,whetheryoungorold,_______somemoneyofyourstothepoorpeopleinthemountainareawhoaresuffering.