职业健康教育类型主要有现况研究、策略开发、干预效果评价研究和（）。 A.职业培训 B

如母体为乙型肝炎患者预防母婴传播的最安全有效的措施是给新生儿注射

A．人血清高效价抗HBs免疫球蛋白

B．α干扰素

C．人丙种球蛋白

D．乙型肝炎基因工程疫苗

E．乙型肝炎基因工程疫苗和人血清高效价抗HBs免疫球蛋白

SECTION B

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with word or phrases that best fits the context.

Soon it would be the holidays. But before that, there were the end of year exams. All the students had been working  36  for some time. If they didn’t pass, they would have to  37  the exams in September. There were usually a few who failed, but Kate decided not to be one of them. She had worked hard all day, but just before the exams she was working so hard that her sister was   38 about her. She was staying up too late. The night before the first exam, Barbala  39  that she should have an early night and take a sleeping pill. She  40  to wake her up in the morning.

As she was falling asleep, Kate was worried that she might oversleep. Her mind kept jumping from subject to subject. At last, with the help of the  41  , she fell asleep. In no time at all, she was sitting in the examination hall, looking at the paper. She couldn’t answer any of the questions. Everyone round her was writing pages and pages. However hard she thought, she couldn’t find  42  to write about. She kept looking at her watch.  43 was running out. There was only one hour left. She started one question, wrote two sentences,  44  and tried another one. With only half an hour left, she wrote another two sentences. By this time she was so  45 that she started  46 . Her whole body shook. It shook so much that it woke her up. She was still  47 and it had all been a(n) terrible dream. A minute later, Barbala called her name.

36. A. lazily         B. hard                C. legally         D. smoothly

37. A. give up       B. pass           C. quit           D. retake

38. A. worried            B. satisfied       C. enjoyed       D. afraid

39. A. argued       B. insisted        C. claimed       D. thought

40. A. refused       B. opposed       C. promised        D. hoped

41. A. herself       B. her sister       C. tiredness        D. pill

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

43. A. Money       B. Food           C. Time         D. Water

44. A. looked up     B. gave up       C. put up         D. made up

45. A. happy        B. excited        C. surprised        D. upset

46. A. moving       B. laughing       C. crying         D. singing

47. A. in bed        B. in the hall       C. in school       D. in the classroom

已知Cl₂和Br₂的化学性质相似，Cl₂+H₂O═HCl+HClO，其中HClO也是一种酸，它与氢氧化钠溶液反应的方程式为：HClO+NaOH═NaClO+H₂O，试分别写出Br₂与H₂O、Br₂与NaOH溶液反应的化学方程式：______、______．

叙述射线防护的三大方法的原理。

某地区自来水氟化3年后防龋效果不明显，需要进一步考虑

A．加强口腔健康教育

B．增加食盐加氟措施

C．提倡使用含氟牙膏

D．注意合理营养

E．强化饮水氟浓度的监测和调节