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单项选择题

A．Simple tools are necessary for mankind.
B．Simple tools can be very complicated.
C．Simple tools are forgotten in the modern society.
D．Modern technology are needed in the modern society.
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单项选择题Which of the following statements best expresses the author’’s view

A．The words people use can influence their behavior.
B．Unpleasant words in sport are often used by foreign athletes.
C．Aggressive behavior in sports can have serious consequences.
D．Unfair judgments by referees will lead to violence on the sports field.

单项选择题A．2.4 children.B．2 children.C．4.2 children.D．4 children.

A．2.4 children.
B．2 children.
C．4.2 children.
D．4 children.