第4题: [单项选择]If the weather is ______ suitable, we will play the football match on Tuesday. A. by means of B. by any means C. by no means D. by all means 参考答案:B 答案解析:[分析] by any means“在某种程度上”,“无论如何”;by means of“用”,“依靠”,如:He succeeded by means of perseverance.by no m
A. affected B. effected C. afforded D. rendered 参考答案:B 答案解析:effect,“实现”、“达到……的目的”,如:The new minister hopes to effect changes in the government's policy.这位新部长希望改
第27题: [单项选择]嗜肺军团菌的特性,正确的是() A. 常用革兰染色,阴性 B. 最适生长温度为30℃ C. 营养要求高,在含血清的培养基上生长 D. 兼性厌氧菌,胞外寄生 E. 可引起医院感染 参考答案:E 答案解析:嗜肺军团菌革兰染色阴性,但予以着色,所以通常用镀银染色或Giemsa染色。最适生长温度为35~36℃。专性需氧,营养要求高,铁和半胱氨酸为必须生长因子。