运行时有颗粒状树脂流失的原因是（）。A、运行流速太快 B、反洗强度不够 C、排水装置

女，42岁。糖尿病4年，近日发现外阴瘙痒，白带多，检查：白带黏稠，典型豆腐渣样， * * 壁充血，宫颈光滑。

该患者最可能发生了 （）

A.非特异性 * * 炎

B.外阴 * * 假丝酵母菌

C.老年性 * * 炎

D.宫颈糜烂

E.淋菌性 * * 炎

暗视野显微镜比普通光学显微镜的分辨率（）

A.稍大

B.小

C.相同

D.稍小

E.很大

When I was a boy,  every holiday that I had seemed wonderful.In those days the sun seemed to shine always brightly   31  the water was always warm. Sometimes we left the beach and walked in the country,  32  ruined houses and dark woods and climbing trees. There were   33  in one’s pockets or good places where one could   34  ice creams. Each day seemed a lifetime.

Although I am now thirty-five years old, my idea of a good   35  is much the same as it was. I   36  like the sun and warm sand and the sound of waves beating the rocks. I no longer wish to   37  any sand house or sand garden, and I dislike sweets.   38 , I love the sea and often feel sand running through my fingers.

Sometimes I   39  what my ideal holiday will be like when I am old. All I want to do then, perhaps, will be to lie in bed, reading books about   40  who make houses and gardens with sands, who watch the incoming tide, who make themselves sick of too many ice creams.

31. A. and              B. yet              C. but             D. or

32. A. exploring          B. examining        C. repairing     D. measuring

33. A. sweets          B. sand            C. ice-creams    D. money

34. A. make            B. sell               C. buy             D. offer

35. A. house           B. holiday            C. garden         D. tide

36. A. hardly            B. almost            C. still             D. perhaps

37. A. destroy          B. fix               C. use             D. build

38. A. But             B. However         C. Otherwise     D. Besides

39. A. wonder        B. feel                 C. understand     D. believe

40. A. children        B. boys                  C. girls            D. grown-ups

褶皱背斜油气藏是指油气聚集在由（）的挤压作用下而形成的背斜圈闭中的油气藏。

A、侧压应力

B、张性应力

C、构造应力

D、剪性应力

支设模板时高度超过( )m时不得使用马凳。

A．2

B．3

C．4

D．5