有关妊娠的概念正确的是() A.妊娠20周以内分娩为流产 B.妊娠28~36周分娩为

题型:单项选择题

问题:

有关妊娠的概念正确的是()

A.妊娠20周以内分娩为流产

B.妊娠28~36周分娩为早产

C.妊娠38~41周分娩为足月产

D.妊娠43周之后分娩为过期产

E.在分娩过程中胎儿死亡称死产

考点:妇产科(医学高级)正常分娩正常分娩题库
题型:单项选择题

November 9 is a time for us to learn a lot more about fire(火). This is what to do in a fire:

1.Shout out. Shout as loudly as you can, because people may be asleep.

2.Call 119. Never try to put out a fire yourself. Tell 119 where you are and what is on fire.

3.Keep down close to the floor. There is less smoke down there, so it’s easier to breathe and see where you are going.

4.Test the door. If the door is cool, open it carefully. If the door is hot, do not open it! Try to find a different way out.

5.Get out. Do not stop to pick up anything. A fire can become very big in a few seconds!

6.Don’t use the lift. Always use the stairs. The lift may go wrong and keep you inside.

7.Don’t go back .Even if you have left your pet or favorite toy inside, do not go back for it. Animals have a very good sense of smell. They often get out of buildings before people.

小题1:When is the National Fire Prevention Day(消防日)?

A.December 9

B.November 9

C.November 11

D.September 11小题2:How many things should we do according to the passage?

A.six

B.eight

C.seven

D.five小题3:According to the passage, when something is on fire, you must ________at once.

A.look for your pet

B.telephone 119

C.call 120

D.put out the fire yourself小题4:You should keep down close to the floor because_________.

A.there is less smoke down there

B.the firemen can find you easily

C.people may be asleep

D.you should look after your things carefully小题5:Which of the following is not right according to the passage?

A.If the door is hot, try to find a different way out.

B.Don’t use the lift.

C.People often get out of buildings before animals.

D.Do not stop to pick up anything.

题型:单项选择题
如图所示,边长为L的正方形线圈abcd 其匝数为n总电阻为r外电路的 电阻为R,ab的中点和cd的中点的连线OO′恰好位于匀强磁场的边界线上,磁场的磁感应强度为B,若线圈从图示位置开始,以角速度ω绕OO′轴匀速转动,则以下判断中正确的是(  )

A.闭合电路中感应电动势的瞬时表达式e=nBL2ωsinωt

B.在t= 时刻,磁场穿过线圈的磁通量为零,但此时磁通量随时间变化最快

C.从t=0 时刻到t= 时刻,电阻R上产生的热量为 Q

D.从t=0 时刻到t= 时刻,通过R的电荷量q=

题型:单项选择题

在平坦地区下面哪种地形测图方法优点较多()。

A、 * * 板仪和经纬仪联合测图法

B、 * * 板仪测图法

C、经纬仪测绘法

D、水准仪测绘法

题型:单项选择题

患者死亡,医患双方当事人不能确定死因或者对死因有异议的,应当尸检。当地不具备尸体冻存条件的,尸检的期限是在患者死亡后( )

A.12小时内进行
B.24小时内进行
C.36小时内进行
D.48小时内进行
E.60小时内进行

题型:单项选择题

男,16岁,能量供给量为2900kcal,蛋白质提供的热能占总热能的12%,该学生。

尼克酸的供给量应是

A.6mg

B.10mg

C.12mg

D.15mg

E.18mg

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