下列单位中,哪一项是电源容量的单位( )。 A.kV B.kA C.kVA

题型:单项选择题

问题:

下列单位中,哪一项是电源容量的单位( )。

A.kV
B.kA
C.kVA
D.mAs
E.kWs

考点:医疗卫生系统招聘考试医学影像专业知识医疗卫生系统招聘考试医学影像专业知识
题型:单项选择题
已知函数f(x)=x(x-a)(x-b),其中a、b∈R
(I)当a=0,b=3时,求函数,f(x)的极值;
(Ⅱ)当a=0时,
f(x)
x2
-lnx≥0在[1,+∞)上恒成立,求b的取值范围
(Ⅲ)若0<a<b,点A(s,f(s)),B(t,f(t))分别是函数f(x)的两个极值点,且0A⊥OB,其中0为原点,求a+b的取值范围.
题型:单项选择题

根据短文内容,将下列A-E五个句子填人文中合适的空缺处,使短文内容完整正确,并将其标号填在下面题号后的横线上。

I’m searching for sports T-shirts.  Do you have any good ideas?

小题1:    I think the NIKE T-shirts are better than others.  Last month, I saw a T-slyirt of new style in a shop. It looked very nice.  Its color was blue.  I feel that the NIKE T-shirt is a bit expensive.  It’s about 400 Yuan.Even though it’s a bit expensive, I advise you to buy it.  It’s made of cotton. 小题2:

If you want to buy some cheaper ones, you can search the Internet Shopping onlihe is becoming more and more popular today.  小题3:

You should go to the shop and choose clothes by yourself.  小题4: So I think you’d better choose clothes according to your own body. If you are thin, Buy one in a warm color.  If not, buy one in a dark color.

I have a good idea.   小题5:  You can design your favorite pictures on it.  If you are a football fan, perhaps Beckham’s photo is a good choice.  Designing your own T-shirt is in fashion this year.  It will show your own art of dressing.

A. So it must be very comfortable.

B.Not all famous brands can make you look better.

C.You can also compare the styles and prices online.

D. Why don’t you buy a white T-shirt? E.  Do you like the NIKE T-shirts?

题型:单项选择题

甲酒店服务员张三为寻求刺激,通过互联网查到与其在同一城市的乙酒店经理的电话后,谎称其已在酒店安放爆炸装置,若乙酒店不及时给其100万元,他就会引爆炸药。但张三未告知乙酒店他的任何取款方式,后乙酒店报案。张三的行为严重扰乱了社会秩序。张三的行为不构成()。

A.投放虚假危险物质罪

B.爆炸罪

C.编造虚假恐怖信息罪

D.敲诈勒索罪

题型:单项选择题

抗精神病药物应进行治疗药物监测的依据是()

A.口服后,药动学特征符合二室开放模型

B.个体差异大

C.血药浓度测定的方法简便、快捷

D.体内呈双相消除

E.药效不稳定

题型:单项选择题

下列费用中,不属于邮政企业的变动成本的是()。

A.工资费用

B.福利费

C.业务酬金

D.折旧费

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