酸奶是一种味道鲜美,营养价值较高的乳制品.它的制作离不开哪种微生物的发酵作用(

题型:选择题

问题:

酸奶是一种味道鲜美,营养价值较高的乳制品.它的制作离不开哪种微生物的发酵作用(  )

A.醋酸菌

B.大肠杆菌

C.乳酸菌

D.酵母菌

考点:演示实验:发酵现象
题型:选择题

阅读理解。

                                               Three Things to Do Before You Are 18

    Are you bored with your daily life? Here are some things you should try before you are 18, because

after that it's too late.

    Learn to swim

    Seriously, this is so important that it can save your life. If you can't swim well, you won't be able to

do water sports like waterskiing, surfing and diving. Even taking a boat trip will be dangerous for you.

Make sure you do it.

    Try at least one kind of team sports 

    Being a good team player is an important skill in life. You can't just think of yourself, but have to work

well with other people. Other advantages of team sports like basketball, football and baseball are that they

keep you fit and healthy, and they are also great fun. Teams usually have a good social life too-you'll go

to lots of parties and make many friends.

    Collect something

    One of the best hobbies for under-18s is collecting things. You could collect kinds of stamps, or you

could collect things that make you remember what you have done, like cinema tickets for films you have

seen or emails from friends. The best way to collect is to have a special album to put your collection in and

to write what each thing means to you. That way you won't forget.

1. The most important reason for learning to swim is that ______. [ ]

A. you might feel well

B. it can make you healthy

C. you might easily do lots of things

D. it can save your life

2. "A good social life" in the passage means ______. [ ]

A. you'll study in groups

B. you'll go to parties and make many friends

C. you'll take part in many matches

D. you'll work in the society (社会)

3. The writer tells us that one of the best hobbies is to ______. [ ]

A. collect something

B. do some water sports

C. camp out in the garden

D. send emails to your friends

4. What kind of collection is NOT mentioned (提及) in the passage? [ ]

A. stamps

B. cinema tickets

C. snowballs

D. emails

5. The passage is mainly about ______ before you are 18. [ ]

A. good habits to keep

B. skills to have

C. things to do

D. sports to play

题型:选择题

深Ⅱ度烧伤创面的临床特点是()。

A.创面感觉消失

B.水疱较小,创面微湿,红白相间,感觉迟钝

C.水疱较大饱满,感觉迟钝,基底潮红

D.水疱饱满,有剧痛和感觉过敏

E.局部红肿,有烧灼感

题型:选择题
如图所示,理想变压器原副线圈匝数之比为4:1,原线圈接入一电压为u=220sin100πtV的交流电源,副线圈接一个R=27.5Ω的负载电阻.则下述结论正确的是(  )

A.副线圈中电压表的读数为55V

B.副线圈中输出交流电的周期为0.01s

C.原线圈中电流表的读数为0.5A

D.原线圈中的输入功率为110W

题型:选择题

流行性乙型脑炎传染过程当中最常见的表现是()

A.病原体被消灭或者排出体外

B.病原体携带状态

C.潜在性感染

D.显性感染

E.隐性感染

题型:选择题

银行对贷款保证人的审查内容主要包括()。

A.是否具有合法资格

B.是否具有较高的信用等级

C.保证手续是否齐全

D.是否在银行开立保证金专用账户

E.净资产在担保债务中的情况

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