长江与黄河上中游河流的共同特征为[ ] A．流量大 B．有结冰期 C．水能资源丰

下列哪项不是腹腔镜胆囊切除术的并发症（）。

A.出血

B.胆管损伤

C.肝脏损伤

D.横结肠损伤

E.十二指肠损伤

第二节完形填空（共20题，满分20分）

About three years 30 , something terrible 31 to me. 32 six hours of terror have broken my body and 33. You think I am a very 34 man—but I am not. It 35 less than a single day to change my 36 from black to white. One day, my 37 brothers and I were 38 back from the islands, our boat 39 of fish. 40 , the sky was 41 with dark clouds and in 42 a minute we were in a terrible storm. An 43  wave covered our boat and my younger brother 44 into the sea. Our boat survived, and I was trying to recover 45 my elder brother put his mouth 46 to my ear, and 47 out the 48 word “Whirlpool!” With the wind and waves we were going in the direction of the whirlpool, and 49 could save us!

30. A. before         B. after          C. ago              D. late

31. A. took place      B. happened      C. changed　        D. informed

32. A. that           B. those          C. this              D. these

33. A. soul           B. heart          C. head             D. mind

34. A. rich           B. poor          C. young            D. old

35. A. spent          B took           C. paid              D. cost

36. A. hair           B. face           C. mouth            D. feet

37. A. three          B. one            C. two              D. four

38. A. came          B. going         C. moving           D. coming

39. A. felt           B. full            C. filled            D. fall

40. A. All at once     B. Instead         C. Meanwhile       D. Besides

41. A. covered       B. discovered       C. recovered        D. covering

42. A. no less than    B. less than        C. more than        D. no more

43. A. enormous      B. small           C. mini            D. enough

44. A. fall into        B. felt into         C. fell into         D. fallen into

45. A. while          B. when          C. as             D.  before

46. A. tightly         B. closely          C tight            D. close

47. A. screamed       B. said            C .told            D. whispered

48. A. terrified        B. terrifying        C. satisfied        D. satisfying

49. A. nothing        B. everything        C. something      D. anything

夏季预防中暑的措施，不正确的是（）

A.喝低盐清凉饮料

B.穿深色衣服

C.采取降温措施

D.保持通风

E.擦防晒霜

黄酮类化合物大都显黄色，广泛存在于自然界，是一类重要的天然有机化合物。这类化合物多存在于双子叶植物及裸子植物中。苔类中很少含有黄酮，而藻类、微生物、细菌中没有发现黄酮类化合物存在。

下列属于黄酮类化合物紫外光谱测定的诊断试剂的有（）

A.AlCl₃

B.NaOAc/H3BO₃

C.AlCl₃/HCl

D.醋酸镁

E.FeCl₃

F.NaOAc

故障分为障碍和事故两种状态，哪些故障状态定为事故？