问题 单项选择题 B型题

鉴定热带假丝酵母菌选用().

A.厚膜孢子形成试验

B.毛发穿孔试验

C.TZC反应

D.氧化酶试验

E.触酶试验

F.脲酶试验

G.血凝试验

H.硝酸盐还原试验

答案

参考答案:C

解析:白假丝酵母菌的鉴定主要有芽管形成试验和厚膜孢子形成试验(均阳性)。热带念珠菌在TZC培养基上生长为深红色或紫色(阳性),而白假丝酵母菌不变色,其他假丝酵母菌为红色。新生隐球菌能产生脲酶,而白假丝酵母菌为阴性。荚膜组织胞浆菌能分解尿素,而杜波组织胞浆菌则不分解尿素。须癣毛癣菌毛发穿孔试验阳性,而红色毛癣菌阴性。

阅读理解

In England, people often talk about the weather because they can experience (经历) several seasons in one day. In the morning the weather is warm just like in spring. An hour later black clouds come and then it rains hard. The weather gets a little cold. In the late afternoon the sky will be sunny, the sun will begin to shine, and it will be summer at this time of a day.

In England, people can also have summer in winter, or have winter in summer. So in winter they can swim sometimes, and in summer sometimes they should take warm clothes.

umbrella (伞)or a raincoat with them in the sunny morning, but you should not laugh at them.If you don't take an umbrella or a raincoat, you will regret (后悔) later in the day.

小题1:Why do people in England often talk about the weather?

A.Because they may have several seasons in one day

B.Because they often have very good weather

C.Because the weather is warm just like in spring

D.Because the sky is sunny all day小题2:From the story we know that when _________come, there is a heavy rain.

A.sunshine and snow

B.black clouds

C.summer and winter

D.spring and autumn小题3:In the sunny morning some English people usually take a raincoat or an umbrella with them because ________.

A.their friends ask them to do so

B.it often rains in England

C.they are going to sell them

D.they are their favourite things小题4:The best title (标题)for this passage is ________.

A.Bad Seasons

B.Summer or Winter

C.The Weather in England

D.Strange English People

单项选择题