不分散低固相聚合物钻井液中固相的质量分数应低于（），并有适量聚合物。 A.0.5%

世界上不同型号的计算机,就其工作原理而言,一般都认为是基于冯.诺伊曼提出的______。

A．二进制原理

B．布尔代数原理

C．开关电路原理

D．存储程序控制原理

关于急性呼吸窘迫综合征的表现，下列哪项不正确()

A．发绀

B．呼吸困难，普通吸氧后不能改善

C．烦躁、多汗

D．早期双肺广泛水泡音

E．多有严重感染或外伤史

Channel Islands

The two main islands, Jersey and Quernsey, are remarkable in that they present a combination of enjoyment, peace and quiet. Neither island is very big (only ten miles long) and so all parts of these coasts are easily reached from the main centers -- St. Helier and St. Peter Port. In both these towns and particularly in Jersey's St. Helier are the amusements of really big resorts (度假胜地). The nearness of France gives a continental atmosphere; the weather here is far better than that of any other part of England. The other three islands, Jethou, Hern and Sark are small and quiet.

Isles of Scilly

The islands are really small and quiet; the weather is warm but windy. The islands are excellent for those who enjoy exploring small inlets (水湾), creeks (小溪) and bays on foot, or better, in a boat.

Isle of Wight

he island is 24 miles across and therefore quite large. The scenery is good and varied. The resorts are neither overlarge nor showy. The island has the best sunshine record in Britain.

Isle of Man

An island with a unique atmosphere -- it is different from England, Scotland or Wales. Thirty miles long, with good roads and good public transport, the mountains, hills and deep valleys are easily reached. Douglas is a major British resort and other holiday places are lively.

60. If you want to drive to the mountains and hills, you would choose

A. the Isle of Man      B. the Isle of Wight                C. Jersey             D. the Isles of Stilly

61. If you want to be fairly sure you would have a lot of sunshine on holiday, you would choose ____.

A. the Channel Islands                                 B. the Isle of Man

C. the Isle of Wight                            D. the Isles of Scilly

62. It can be concluded from Paragraph One that _______.

A. the Channel Islands consist of two islands

B. the Channel Islands are really ideal resorts

C. Jersey and Quernsey are excellent for those who enjoy exploring nature

D. there are many resorts in Jethou, Hem and Sark

63. In which way are the Channel Islands different from all the other places in England?

A. The coasts are easily reached from the main centers.

B. There are more islands there.

C. The weather is far better.

D. The crowds there can enjoy more entertaining but quieter holidays.

下述哪项最能说明心功能失代偿（）

A.心肌肥厚与心脏扩大

B.心率快

C.心脏收缩力减低

D.有效血容量增加

E.心排血量下降

治疗湿热下注型痛经的最佳方剂是：（）

A.清肝止淋汤

B.清热调血汤

C.清经散

D.清肝引经汤

E.清热固经汤