—This is the first time I __________ my first picture with my own hands.

—It's time that you __________ a picture for me.

A．took; will take

B．have taken; took

C．took; took

D．will take; have taken

创伤后出血使用止血带错误的是（）。

A.使用时间一般不超过1小时

B.禁用橡皮管、三角巾等代替

C.缚扎适度

D.每隔1小时放松1～2分钟

E.必须有显著标识并注意时间