21．研究細(xì)菌的生物學(xué)性狀,最好選用細(xì)菌生長(zhǎng)繁殖的哪個(gè)時(shí)期(      )

A．遲緩期                                                       B.對(duì)數(shù)生長(zhǎng)期     

C.穩(wěn)定期                                                         D.衰退期

22．病原菌侵入血流并在其中繁殖,造成機(jī)體嚴(yán)重?fù)p害出現(xiàn)全身中毒癥狀稱(      )

A．毒血癥                                                       B.菌血癥     

C.敗血癥                                                         D.膿毒血癥

23．關(guān)于細(xì)菌核蛋白體的敘述，哪一項(xiàng)是錯(cuò)誤的(      )

A．沉降系數(shù)為70S                                          B.由30S和40S兩個(gè)亞基組成

C.鏈霉素能與30S亞基結(jié)合                              D.紅霉素能與50S亞基結(jié)合

24．能區(qū)別甲型溶血性鏈球菌與肺炎鏈球菌的試驗(yàn)是(      )

A．外斐試驗(yàn)                                                   B.膽汁溶菌試驗(yàn)

C.OT試驗(yàn)                                                        D.肥達(dá)試驗(yàn)

25．當(dāng)一工人因鐵釘深刺造成外傷送醫(yī)院急癥時(shí)，醫(yī)生首先考慮給予注射(      )

A．破傷風(fēng)類毒素                                            B.破傷風(fēng)抗毒素

C.百白破三聯(lián)疫苗                                           D.丙種球蛋白

26．培養(yǎng)結(jié)核桿菌選用(      )

A．呂氏血清培養(yǎng)基                                         B.羅氏培養(yǎng)基

C.巧克力培養(yǎng)基                                               D.庖肉培養(yǎng)基

27．判斷有包膜與無(wú)包膜病毒的依據(jù)是(      )

A．是否出現(xiàn)細(xì)胞病變                                     B.對(duì)脂溶劑是否敏感

C.超速離心沉淀速度不同                                 D.對(duì)溫度抵抗力不同

28．懷孕期受感染引起畸胎的病毒主要是(      )

A．流感病毒                                                   B.脊髓灰質(zhì)炎病毒

C.風(fēng)疹病毒                                                      D.冠狀病毒

29．殺滅細(xì)菌芽孢最有效的方法是(      )

A．紫外線照射                                                B.煮沸法

C.高壓蒸汽法                                                  D.間歇滅菌法

30．內(nèi)基小體可用于輔助診斷的疾病是(      )

A．鸚鵡熱                                                       B.麻疹

C.狂犬病                                                         D.皰疹