单项选择题

The goal of "Noah's Ark" Project is to_______.

A．make efforts to clone the endangered panda
B．save endangered animals from extinction
C．implant embryo into a host animal
D．collect DNA of endangered animals to study

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热门试题

单项选择题

In Kraemer' s opinion, if some species died out, it would possibly _______.

A．affect the existence of other species
B．do good to other species
C．reproduce the species in the future
D．clone the species right now

单项选择题

What is the main idea of this passage

A．It states the principles of time.
B．It explains why time flies and how to slow it down.
C．It describes various views about time.
D．It shows the different ideas of physicists and psychologists on time.