关于双胎,下列说法错误的是(). A.其发生与遗传因素有关 B.联体双胎是由单卵双胎

题型:单项选择题

问题:

关于双胎,下列说法错误的是().

A.其发生与遗传因素有关

B.联体双胎是由单卵双胎形成的

C.单卵双胎两个胎盘之间均仅有两层羊膜

D.单卵双胎两个胎儿可共存于1个羊膜腔中

E.双卵双胎两个胎盘之间有两层绒毛膜、两层羊膜

考点:广西妇产科住院医师规范化培训妊娠病理妊娠病理题库
题型:单项选择题

请认真阅读下列各句,在答题卡上标有题号的横线上,写出空缺处该动词的正确形式。

小题1: -Is your father good at    (swim)?

- Yes, he swims very well.

小题2: - May I speak to Mr. Morgan?

- Sorry. Please call him later again. He    (walk) his dog in his garden.

小题3:Thank you very much for    (write) to me.

小题4:I like this jumper very much because it makes me.    _(feel) very comfortable..

小题5:The girl from the UK is very interested in    (learn) about the history of China.

小题6:    (be) there two cups of tea on the table over there?

小题7:One of my friends    (not come) from Suzhou. He is from Nanjing.

小题8:It is fine today. Would you like    (enjoy) the sunshine with me?

小题9:Amy's mum gets up early every morning and    (cook) breakfast for her.

小题10:We often go to the shop not far away from our school    (buy) our stationery.

题型:单项选择题

限局性吸气相哮鸣音 ()

A.支气管扩张症

B.支气管哮喘

C.支气管肺癌

D.慢性支气管炎(喘息型)

E.肺间质纤维化

题型:单项选择题

2005年10月15日,举世瞩目的青藏铁路全线贯通,2006年7月全线试运行。青藏铁路总投资额330.9亿元。从国民收入的用途来看,国家用于青藏铁路的投资属于[ ]

A、非生产性基本建设基金

B、扩大再生产基金

C、社会物资储备基金

D、公共消费基金

题型:单项选择题

当离心泵输送液体的密度增大时,泵的扬程()。

A.上升

B.下降

C.不变

D.不一定

题型:单项选择题

NPC的主要功能?

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