题目信息
Punctuated equilibrium is a biological theory that regards evolution not as a gradual process by which one species slowly and continuously transforms into another, rather a process in which species were remaining stable for long periods and then have dramatic change in isolated short bursts.
A:rather a process in which species were remaining stable for long periods and then have dramatic change
B:but as a process in which species remain stable for long periods and change dramatically
C:but a process in which species remain stable for long periods and then have dramatic change
D:but as a process in which species remained stable for long periods and changing dramatically
E:but also as a process in which species were remaining stable for long periods and were changing dramatically
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B:but as a process in which species remain stable for long periods and change dramatically
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