任务扩大化与工作丰富化有何区别？你自己将会更愿意选择哪种方式？为什么？

My brother left the work half _____,for you can find many books _____ scattered on the floor.  [ ]

A. done;lying      

B. doing;lain        

C. done;lay        

D. did;lie

The kangaroo is _____ Australia. It lives _____ grassland.[ ]

A. from; in

B. come from; in

C. comes from; in

D. from; on

—Could you give us an account about the big fire?

—OK. It was a Friday evening _______the fire broke out and ten persons were killed in it.   

A．where

B．on which

C．that

D．when

TT显著延长，可被甲苯胺蓝或硫酸鱼精蛋白纠正而不被正常血浆纠正，同时APTT、PT也延长，提示可能存在（）。

A.遗传性纤维蛋白原缺陷症时

B.遗传性因子Ⅻ缺乏症

C.肝素样抗凝物质增多

D.狼疮样抗凝物质增多

E.因子Ⅷ抑制剂

善治痰热闭阻心窍，神昏口噤的药物是（）

A.钩藤

B.金银花

C.牛黄

D.白菊花

E.大青叶