单项选择题

What does the fourth paragraph imply

A．It's of significance to make different reactions to the same things.
B．Scientific research is unreliable owing to the different observations.
C．People try their best to make impartial observation.
D．The way of observation varies from person to person.

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单项选择题By using the example of Galileo, the author intends to reveal that ______.

A．objectivity is essential to scientific research
B．hypothesis is based on careful observation
C．creativeness plays an important part in scientific research
D．observation is the only factor determining scientific research

单项选择题On the basis of their observations, scientists ______.

A．make more observations
B．develop hypotheses and theories,
C．reveal their observations to the public
D．challenge their colleagues

单项选择题Human beings differ from animals because they can ______.

A．adapt to their environment
B．control their environment
C．adapt the environment to their need
D．observe and understand their environment

单项选择题This text indicates that the basic component of scientific research is ______.

A．observation
B．hypothesis
C．reasoning
D．interpretation

单项选择题According to the context, the simple reading done by the computer mostly refers to ______.

A．reading in search of intended information only
B．looking for unexpected information only
C．reading to locate texts to be used in teaching
D．reading to set up superior master indexes