—_____ —I'm fine, thank you. [ ] A. Are

题型:选择题

问题:

—_____

—I'm fine, thank you. [ ]

A. Are you Michael?  

B. How do you do?  

C. How are you?

考点:日常用语、谚语
题型:选择题

与葡萄球菌的致病性无关的是()

A.耐热核酸酶

B.肠毒素

C.杀白细胞毒素

D.M蛋白

E.表皮剥脱毒素

题型:选择题

关于普查的目的,以下哪一项不正确

A.早期发现病人

B.了解疾病的分布

C.了解人群的健康水平

D.为卫生决策提供依据

E.验证病因假设

题型:选择题

Word came that the government must control the spread of this disease.

“Our job,”said the 26 officer,“is to spray the wall of every house in every town and village in the malariaparts of Mexico.You may be 27 to learn that there are about ninety-nine thousand 28 villages and towns.Some are big places like the capital city, 29 are single houses deep in the forest or upon the mountaintops.The men working with our program say that most of these people 30 within districts which are 31 enough for the mala ria-carrying mosquitoesto live in and spread the disease.That 32 that we must plan to spray the bricks of 33 three million houses once or twice a year for five years.”

“We have 34 everything very carefully,”said the officer 35 .“Our advance guards have drawn 36 of some forty thousand parts of the country for 37 by the spray teams.Each house in the malaria districts has been given a special 38 so that we can work in order.The United States has given us cars and trucks to carry the spray teams and their 39 .”

“The malaria program has been 40 with the people in this country.Everyone wants to 41 .The Defense Department is helping us plan the 42 of men and supplies.The Education Department has printed sheets in Spanish to explain 43 malaria is spread.Resistance is a problem.It was in the neighboring country—the United States that such resistance to spray was first 44 .Take the 45 of the housefly and D.D.T. At fist D.D.T. killed them off.Now it won’t hurt a fly.”

“What worries people is the danger that the mosquitoes may become resistant,”said the officer at last.

26.A.education              B.wealth                       C.health                       D.medicine

27.A.surprised                     B.excited                      C.doubtful                    D.happy

28.A.united                  B.developing                C.similar                      D.separate

29.A.other                    B.some                         C.the others                  D.the few

30.A.sleep                    B.live                           C.stand                         D.sit

31.A.cold                            B.hot                           C.bright                       D.warm

32.A.saves                    B.expresses                   C.means                       D.is

33.A.nearly                  B.mostly                      C.finally                       D.only

34.A.read                            B.learnt                        C.written                      D.studied

35.A.mentioned            B.remembered                     C.started                       D.continued

36.A.pictures                B.places                       C.maps                         D.bus-lines

37.A.store                    B.use                           C.share                         D.show

38.A.name                    B.sign                          C.number                            D.attention

39.A.tools                   B.clothes                      C.families                     D.guns

40.A.familiar                B.friendly                     C.strict                         D.popular

41.A.work                    B.run                           C.stop                          D.help

42.A.movement            B.program                    C.action                       D.equipment

43.A.why                            B.how                          C.what                         D.that

44.A.proved                 B.killed                        C.thought                            D.discussed

45.A.event                    B.matter                       C.fact                           D.case

题型:选择题

吊桶的连接装置的安全系数应不小于13。

题型:选择题

白云质灰岩中白云石的含量约为10%。()

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