触发首层的消防电梯迫降按钮，检查消防电梯能否下降至首层，并发出反馈信号，此时（）不能

5张卡片上分别写有数字1，2，3，4，5，从这5张卡片中随机抽取2张，则取出的2张卡片上的数字之和为奇数的概率为______．

唯物辩证法要求我们坚持创新、发展的观点。下列说法体现这一观点的是

A．明者因时而变，知者随事而制

B．一花独放不是春，百花齐放春满园

C．满招损，谦受益

D．物必先腐，而后虫生

信息匹配。

阅读下列应用文及相关信息, 并按照要求匹配信息。

以下是有需求的六个人的相关信息：

A. Tom's mother is worried because Tom's wounded this morning when he jumped off the speeding

     bicycle.The soft tissue of his right leg was broken.

B. Alex is going to take a course of computer.But he is not sure whether this course will be useful

    when he goes to the university.

C. Mummy is unhappy because she feels painful when she bites into something cold or hot.Her teeth

     are really a trouble to her.

D. Mary's younger brother Tim, who is 8 years old, felt uncomfortable, because he had eaten too

    much icecream.

E. Lily wants to visit some places of interest during the long holiday.But she doesn't know where to

    go and how to have a good tour and not waste money.

F. Lee is really frustrated nowadays.He doesn't know why other students don't want to speak to him.

    What's wrong? It seems that he can never get out of it. He gets angry easily recently.He wants to

   talk to someone to get out of it.

以下是各位专家的有关信息, 请匹配需求者与他们所对应的信息.

1. Doctor Allen

     Doctor Allen is a dentist.The dentist is a doctor who is specially trained to care for teeth.When you

visit your dentist for a checkup, he or she will look at your teeth and gums to check for any problem.The

dentist also wants to make sure your teeth are developing properly as you grow.It's important to visit your dentist every 6 months to make sure you're taking good care of your teeth and that your teeth and gums 

are healthy.

2. Doctor Philips

     Doctor Philips is a pediatrician.Basically, pediatricians focus on the physical, emotional, and social health of infants, children, adolescents, and young adults from birth to 21 years.Their patientcare lens is focused

on prevention, detection, and management of physical, behavioral, developmental, and social problems

that affect children.Even more basically, pediatricians take care of children.This might involve treating an

ear infection, talking to parents about school or behavioral problems, or seeing them for well child

checkups and giving them their shots.

3. Doctor Smith

     Doctor Smith is a surgeon, who is a physician specializing in surgery.General Surgeons perform

comprehensive general surgery examinations, consultation, diagnosis, and treatment planning, which

includes trauma, wounds, and conditions of soft tissue, including aspiration, biopsy, and repair, etc.

4. Doctor Steward

     Doctor Steward is a clinical psychologist, who is trained and educated to perform psychological

research, testing, and therapy.Clinical psychologists may simply, but importantly, provide an opportunity

to talk and think about things that are confusing and worrying.They would also discuss with you different

ways of understanding or interpreting your problems or situations.Clinical psychologists are trained to use

a range of different approaches aimed to help you become more expert about yourself, and more able to

overcome or cope with life problems.

5. Doctor Lisa

      Doctor Lisa is an excellent school consultant.Educational consultants counsel students and their

families in the selection of programs, schools and treatment centers, based on the students' individual

needs.When students graduate from high school, some of them want to continue their study; they may

be not sure which university is more appropriate for them, or what subject they will choose.In that case,

most of them will turn to their educational consultants.

下列关于投资银行与商业银行的比较，说法错误的是( )。

A．两者都是资金盈余者与资金短缺者之间的中介
B．资金媒介机制相同
C．本源业务不同
D．利润来源和构成不同

人参与黄芪功效的共同点，下列哪项是错误的（）

A.补肺气

B.补脾气

C.补气生血

D.补气生津

E.补气利水