可以录制声音的软件是()。
A、Photoshop
B、CoolEditPro
C、Premiere
D、ACDSee
参考答案:B
---The meeting’s been put off until next week.
---Sorry, ______. Could you say it again?
A.I didn’t mean that
B.I didn’t know
C.I didn’t take it
D.I didn’t get it
有关DNA聚合酶作用条件说法错误的是()
A.必须有单链DNA模板
B.底物是dNTP
C.合成方向只能是3′→5′
D.需要ATP和Mg2+参与
E.合成方向只能是5′→3′