单项选择题

One of the wrong notions about science is that many scientific discoveries have come about（）.

A．accordingly
B．accidentally
C．artificially
D．additionally

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单项选择题

It can be inferred from the passage that the pupils ().

A．usually study a certain subject in greater details at home than at school
B．usually do not study a certain subject at home
C．study the subjects only at school
D．study a subject more deeply at school than at home

单项选择题

()are the first formal socialization agents.

A．Infant nurturers
B．Family members
C．Group peers
D．School teachers