1956年，H．Fraenkel Conrat用烟草花叶病毒所进行的拆分与重建实验，结果也证明DNA是遗传物质的基础

A.0→σcon

B.0→1.02σcon

C.0→1.05σcon持荷2min→σcon

D.0→1.07σcon

A.0-初应力(0.3σcon)-σcon

B.0-初应力(0.2σcon)-σcon

C.0-初应力(0.6σcon)-σcon

D.0-初应力(0.6σcon)-1.2σcon

A.0—-→1.03бcon

B.0-—→1.03бcon-—→бcon

C.0—-→1.05бcon

D.0-—→1.05бcon-—→бcon

A.0→初应力-103%σcon (持荷2min) -σcon

B.0→初应カ→105%σcon (持荷2min) -σcon

C.0-初应力-105% σcon (持荷5min)-σcon

D.0→初应力-103% σcon (持荷5min) -σcon

A.0→初应力→103%σcon→锚固

B.0→初应力→105%σcon→锚固

C.0→初应力→105%σcon→锚固

D.0→初应力→103%σcon(持荷5min) →锚固

A.5%σcon

B.10%σcon

C.15%σcon

D.20%σcon

A.wap. shou. con

B.www. sohu. com

C.wap. www. sohu. con

D.www. wap. sohu. com

A 15-year-old girl has been arrested__accusations of using Instagram to anonymously theaten her high school.

Aover

Bwith

Con

Dfor

A.A12

B.CON？*.A

C.AC.A*

D.PRN？.C