I__________ him to develop a hobby but I failed.
A. advised
B. suggest
C. prohibited
D. persuaded
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Son:I‘m terribly sorry.Mom.I‘ve broken an Italian vase. Mom:__________
A. Oh,what a pity!
B. Oh,dear,how awful.it is!
C. Oh,that doesn"t matter.
D. Oh,I"m so sorry about that.
甲、乙二人2小时共加工54个零件,甲加工3小时的零件比乙加工4小时的零件还多4个。甲每小时加工()个零件。
A. 11
B. 16
C. 22
D. 32
The experiments demonstrate that__________ .
A. nearly every individual will behave differently from others
B. group pressure is caused by the interference of the psychologists
C. psychologists wish to change the people’s judgments and opinions
D. people will change their ideas under group pressure
配制一系列溶液,其中Fe2+含量相同(各加入7.12×10-4mol·L-1Fe2+溶液2.00mL),分别加入不同体积的7.12×10-4mol·L-1的邻二氮(Phen)溶液,稀释至25mL后用1cm吸收池在510nm处测得吸光度如下:
求络合物的组成。