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【单选题】A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years, and may posse...
A.
on the mountains with little air
B.
in the cold polar areas
C.
in the hot desert areas
D.
in the open oceans
【单选题】A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years, and may posse...
A.
hiding in tiny spaces
B.
having a strong shell
C.
flying away when necessary
D.
changing colors or shapes
【单选题】A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years, and may posse...
A.
frighten away their enemies
B.
avoid being discovered
C.
send warning signals
D.
look bitter-tasting
【单选题】A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years, and may posse...
A.
how insects survive in different places
B.
why insects can survive so successfully
C.
what insects can do to the environment
D.
where insects can be found in quantity