Two men are walking in the park. One is Mr. Brown, a worker, the other is Mr. Black. Mr. Brown is going to a chair. It is next to the road. Mr. Black is after him. Mr. Brown finds Mr. Black. Now Mr. Black begins to walk faster (更快). Because he wants to get to the chair before Mr. Black. Now Mr. Black begins to walk faster because he also wants to get to the chair first. Then they both run. Mr. Black runs faster than (比) Mr. Brown. So he gets to the chair first and sits down on it. Mr. Brown runs after Mr. Black. When he gets to the chair. He sees Mr. Black sitting on it. He is sorry to show a notice(通知)with the words“Wet Paint(油漆未干)”to Mr. Black. Now Mr. Black knows why Mr. Brown is going to the chair.

小题1:Where are Mr. Brown and Mr. Black?

A．In the garden

B．On the chair

C．In the park

D．Next to the road小题2:What are they doing? They are________

A．talking

B．walking to the chair

C．holding a notice

D．sitting on a chair小题3:________is after _________at first

A．Mr. Black , Mr. Brown

B．The worker, Mr. Brown

C．Mr. Brown ,Mr. Black

D．Mr. Brown The worker小题4:________get to chair first.

A．The worker

B．Mr. Brown

C．Mr. Black

D．A student小题5:Mr. Brown goes to the chair because__________.

A．he wants to sit there

B．it is his chair

C．he wants to talk to Mr. Black on the chair

D．he wants to tell people “Wet Paint”

患者，男性，15岁，玩耍时突然发生右大腿下端疼痛，经医院拍片确诊为骨良性瘤，并发骨折。这种骨折属于（）

A.创伤性骨折

B.肌肉牵拉

C.疲劳性骨折

D.病理性骨折

E.以上都不对