A:两者催化同一种化学键形成
B:两者催化同一种化学键断裂
C:两者都参与目的基因与载体的结合
D:两者都参与遗传信息的表达
A. No, the lion is big.
B. No, it can't .
C. A duck has wings .
D. No, it lives in a forest .
E. No! A tiger has stripes .
Mary usually _______ up at five o’clock. ( )