阅读理解。

1.If someone sees a newly born koala bear, he will be surprised because it's very ______. [ ]

A.weak

B.small

C.short

D.black

2.A baby koala can't live without ______. [ ]

A.its father

B.grass

C.its mother

D.people

3.The kangaroo is the national symbol of ______. [ ]

A.Canada

B.Australia

C.America

D.Britain

4.There are more ______ than people in Australia. [ ]

A.kangaroos

B.koala bears

C.monkeys

D.elephants

5.We can guess that koala bears and kangaroos are ______ animals in Australia.[ ]

A.beautiful

B.playful

C.endangered (危险的)

D.popular

患者经行涩少，色紫暗，有血块；小腹胀痛，血块排出后胀痛减轻；舌紫暗，脉沉涩。治疗应首选的方剂是（）

A.丹栀逍遥散

B.血府逐瘀汤

C.少腹逐瘀汤

D.桃红四物汤

E.乌药汤