问题:
[单选题]
How did Binet decide which task to include on his first test?
A.
He first worked out thirty tasks for mentally deficient children.
B.
He first gave all the tasks to many children both younger and older.
C.
He first gave the tasks to many children he thought appropriate.
D.
He first gave some of the tasks to different groups of children.
试题来源参考:成人高考专升本,英语真题试卷,英语答案,英语历年真题,英语模拟试卷,成人高考专升本入学考试