常出现在SLE活动期，且常常提示有NP狼疮或其他重要内脏损害的抗体是（）。 A.抗S

把一根弹簧平放在光滑水平面上，使一端固定．把一个质量为1kg的滑块放在弹簧另一端，用力水平推动滑块使弹簧压缩．当把滑块由静止释放后，经过0.5s弹簧把滑块以10m/s的速度水平弹出去，在这段时间内弹簧对滑块做功的平均功率等于

A．20W

B．200W

C．100W

D．25W

2009年11月15日至18日，美国总统奥巴马对中国进行国事访问，两国元首就中美关系和其他共同关心的问题进行了深入坦诚的会谈，成果丰富，达成多项共识，其中最引人注目的是发表《中美联合声明》，双方同意建立应对共同挑战的“伙伴关系”。这表明( )

①国家之间发展关系应坚持平等互利原则 ②追求和维护国家间的共同利益是各国对外政策的出发点和归宿 ③维护国家间的共同利益是主权国家制定和推行对外政策的依据 ④美国和中国的根本利益是一致的

A．①②

B．③④

C．①③

D．②④

关于慢性胰腺炎的叙述中错误的是

A．与酗酒有关
B．主胰管可扩张
C．可形成假性囊肿
D．胰腺呈水肿样低回声
E．可急性发作

当性格与职业不够匹配时，可以从哪些方面摆脱危机？

(三)

Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route-through the boot.

Mr. Johnson’s car had finished up in a ditch at Romney Marsin, Kent after skidding on ice and hitting a bank. "Fortunately, the water began to come in only slowly," Mr. Johnson said. "I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in. "

Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot. Then he began his struggle to escape.

Later he said, "It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew the back seat to get into the boot. I hammered desperately with a hammer trying to make someone hear, but no help came. "

It took ten minutes to unscrew the seat, and a further five minutes to clear the sweet samples from the boot. Then Mr. Johnson found a wrench and began to work on the boot lock. Fifteen minutes passed by. "It was the only chance I had. Finally it gave, but as soon as I moved the boot lid, the water and mud poured in. I forced the lid down into the mud and scrambled clear as the car filled up. "

His hands and arms cut and bruised, Mr. Johnson got to Beckett Farm nearby, where he was looked after by the farmer’s wife, Mrs. Lucy Bates. Huddled in a blanket, he said, "That thirty minutes seemed like hours. " Only the tips of the car wheels were visible, police said last night. The vehicle had sunk into two feet of mud at the bottom of the ditch.

"Finally it gave" (Paragraph 5)means that （）.

A．Luckily the door was torn away in the end

B．At last the wrench went broken

C．The 10ck came open after all his efforts

D．The chance was lost at the last minute