单项选择题

Judging by the passage, biologist David Anderson ______.

A．seemed to be interested in marathon
B．made use of a satellite in his research
C．was probably a specialist in remote education
D．put together multimedia presentations for NSF

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热门试题

单项选择题

The Chickscope Project enabled students to do the following EXCEPT______.

A．to set up an incubator to hatch chicks
B．to actually operate an MRI system
C．to get involved in actual research
D．to watch the changes in the chick embryo

单项选择题

In order to correctly acquire the meanings of nouns in referring to classes , a child______.

A．has to learn to identify some features while ignoring others
B．first has to be able to use proper nouns
C．must be at least six years old
D．must play with toys