单项选择题

It is generally believed that in applied investigation

A．research workers follow unexpected, interesting clues.
B．scientists make a discovery first, and then try to use it.
C．it is the man rather than the project who is given support.
D．results of practical value are to be achieved.

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单项选择题

According to the author,

A．the investigation of the life cycle of a protozoon is pure research.
B．applied investigation is looked down upon in modern society.
C．the discovery of X-rays was made in applied research.
D．the common classification of research is neither accurate nor impersonal.

单项选择题

It can be inferred from the passage that the Expressionists were

A．lonely people frequently feeling unhappy at being alone.
B．motivated by a desire to change for the sake of changing.
C．not immediately acknowledged by the masses.
D．appreciative of the effect of cartoons on their work.