已知z∈C,解方程z.z-3i.z=1+3i.

题型:解答题

问题:

已知z∈C,解方程z
.
z
-3i
.
z
=1+3i.
考点:复数的四则运算
题型:解答题

根据证券法律制度的规定,下列人员中,不属于证券交易内幕信息的知情人员的是( )。

A.上市公司的总会计师
B.持有上市公司3%股份的股东
C.上市公司控股的公司的董事
D.上市公司的监事

题型:解答题

简述药具入库时如何进行外观验收?

题型:解答题

依据《中华人民共和国合同法》关于违约责任的规定,下列说法不正确的是()。

A.约定违约金低于造成的损失时,应当相应增加违约金

B.约定违约金高于造成的损失时,应当相应减少违约金

C.处置违约行为后果时,违约金与定金不能同时使用

D.第三方违约行为造成对方的损失应由当事人赔偿

题型:解答题

Do you know that girls are seven times more likely than boys to be unhappy and twice more likely to commit suicide(自杀)and that girls are three times more likely than boys to have a negative attitude?Twenty percent of the girls in the US between the ages of 12 and 17 drink alcohol(酒)and smoke cigarettes.

So what is mental(心理的)health?Mental health is how we think,feel,and act in order to face life’s problems.

A young girl’s mental health affects her daily life and future. Like physical health,mental health is important at every stage of life. Caring for and protecting a young girl’s mental health is important to ensure that she grows up to become the best she can be.

Many children experience mental health problems that are painful and can be serious. Mental health problems affect at least one in every five young people at any given time. Unluckily,about two thirds of all young people with mental health problems are not getting the help they need. Mental health problems can lead to school failure,alcohol or other drug abuse(滥用),family violence,or even suicide.

There are many signs that may point to a possible mental health problem in a child or teenager. If you are worried about a child or have any questions,look for help at once. Talk to your doctor,a school teacher,or other mental health experts who are trained to know whether your child has a mental health problem. You can also call 1­800­789­2647 for a list of warning signs.

小题1:What is implied in the first paragraph?

A.More and more girls are committing suicide.

B.Boys are usually physically stronger than girls.

C.Girls are more likely to have mental health problems than boys.

D.Children in America are lacking in parental care.小题2:In the author’s opinion,________.

A.mental health is more important than physical health

B.mental health is important no matter how old you are

C.people with mental health problems will never succeed

D.it’s easier for children to have mental health problems than adults小题3:According to the passage,which of the following people would most probably call 1­800­789­2647?

A.People who are sure they have mental health problems.

B.Children who have mental health problems and want help.

C.Parents who want to know whether their children are doing well at school.

D.Parents who want to know whether their children have mental health problems.小题4:The purpose of this passage is to________.

A.tell parents what to do if they find that their children have mental health problems

B.explain why so many children have mental health problems

C.tell people how bad it is to have mental health problems

D.ask parents to pay more attention to their children’s mental health

题型:解答题

屎壳郎是蜣螂的俗称。屎壳自口将粪堆在一起推滚成粪球,是为了()。

A、为自己储存食物

B、将卵产在球内,幼虫以粪为食

C、是一种本能的健身运动

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