活字印刷术的发明者是() ["鲁班","蔡伦","毕昇","伏羲"]
When comparing java.io.BufferedWriter to java.io.FileWriter, which capability exists as a method in only one of the two?() [" closing the stream"," flushing the stream"," writing to the stream"," marking a location in the stream"," writing a line separator to the stream"]
对钢筋混凝土简支梁进行纯弯曲试验,一般采取()加载办法。 ["单个集中力","均布荷载","两个集中力","多个集中力"]
要一次选择整个表,在标签检查器中选择()标签。 ["tr","table","td","t"]
试述我国四大发明的对外交流。
1974年3月,日本国会通过了()和学校教育法两部法律,这是规范日本战后教育形态的根本性大法。