Robinson Crusoe was based upon the experiences of a Scotch sailor called Alexander Selkirk, who had been marooned on a desert island off the coast of Chile and lived there in solitude for four or five years.
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In this novel, Defoe created the image of a true empire-builder, a colonizer and a foreign trader, who has the courage and will to face hardships, and who has determination to preserve himself and improve his livelihood by struggling against nature.
A. 对
B. 错
Defoe was a prolific and versatile writer, producing more than three hundred works---books, pmphlets, and journals.
A. 对
B. 错
方差分析中,组内平方和表示由( )造成的变异
A. 实验误差(包括个体差异)
B. 实验处理
C. 个体
D. 自变量
下面哪个预定义变量是用来获取HTTP文件上传信息?( )
A. $_GET
B. $_POST
C. $_FILES
D. $GLOBALS