末端冗余
参考答案：
指噬菌体基因组两端（例如）同一个序列的重复。
—_____ your school _____ at nine o’clock?
—No, it doesn’t. It starts at 8:00.[ ]
A. Do, starts
B. Does, starts
C. Does, start
D. Do, start
The table ____ too much room. Let’s move it out of the sitting room.
A．takes on
B．takes up
C．takes over
D．takes out
