提倡发现学习的教育心理学家是（） ["布卢姆","布鲁纳","凯洛夫","赞可夫"]
根据负荷类别、供电要求，仪表电源设（）。 ["独立电源","工作电源","保安电源","备用电源"]
“举秀才，不知书。察孝廉，父别居。寒素清白浊如泥，高第良将怯如鸡。”说明了哪种选士制度的弊端？（） ["世袭","察举","九品中正","科举"]
眼之所以能清晰看见远、近物体，是因为对（）和（）进行了相应的调节。 ["晶状体","角膜","玻璃体","瞳孔"]
我国出版业由哪些单位构成，他们承担哪些任务？
To many people,a linguist is the same as a （）,one who can speak several languages fluently.
