霍奇金病病变中最具有诊断价值的细胞是()。 A.R-S细胞 B.淋巴细胞 C.隐窝细

题型:单项选择题 A1/A2型题

问题:

霍奇金病病变中最具有诊断价值的细胞是()。

A.R-S细胞

B.淋巴细胞

C.隐窝细胞

D.多形性瘤细胞

E.未分化型细胞

考点:肿瘤学(医学高级)肿瘤学综合练习肿瘤学综合练习题库
题型:单项选择题 A1/A2型题

What do we do when we go camping? First, we think of a plan. We take food, clothes, a knife, and things for cooking and eating. We take things to keep us away from insects and the sun. Then we put everything into the car and we drive to the woods. We look for a place for campers (露营者) and we look for a good place for our tent(帐篷). The place should have a lot of air. This will keep some insects (虫子) away. High land with water on both sides of it is good. Then we put up our tent. We put everything into the tent, and we are ready for fun. We can swim in the lake, walk in the woods, climb a mountain, row a boat, or go fishing. In the evening we come back to the tent, we build a big fire because it can keep the insects away. We sit around the fire and talk. We may tell interesting stories or we may sing songs. At night we lie down on the grass. We can look up at the stars. It is a busy day, so we try to go to sleep early. Everything is dark. Everything is quiet. We hope we won’t hear music from the radio in the next tent. We hope it won’t rain.

小题1: Before going to camp we should first ___________.

A.think of a plan

B.take some food

C.take things to keep us warm

D.take something for cooking and eating小题2: We go to camp __________.

A.by bus

B.by car

C.by bike

D.on foot小题3: Campers can join in ________ activities.

A.one or two

B.only a few

C.many

D.two or three小题4: In the evening we build a fire because ________.

A.it is cold at night

B.it can keep us warm

C.it can keep the insects away

D.it is dark and quiet小题5: The campers like to ____ at night.

A.hear music from the radio 

B.go to sleep early

C.have rain

D.be busy

题型:单项选择题 A1/A2型题

我国空军科研人员在飞机零高度、零速度的救生脱险方面的研究已取得成功。由于飞机发生故障大多是在起飞、降落阶段,而此时的高度几乎为零高度。另外在飞行过程中会出现突然停机现象,在这种情况下,飞行员脱险非常困难。为了脱离危险,飞行员必须在0.1 s的时间内向上弹离飞机,若弹离飞机的速度为20 m/s,试判断弹离飞机过程的加速度是多大。

题型:单项选择题 A1/A2型题

为探究某稀硫酸中溶质的质量分数,甲和乙两学生分别取溶质质量分数相等的稀硫酸100g.甲向其中加入6.5g锌粒,反应结束时观察到锌粒完全消失;乙向所取稀硫酸中加入13g锌粒,反应结束时观察到锌粒有很少量剩余.有关实验的推理一定正确的是(  )

A.原稀硫酸中溶质质量分数大于9.8%而小于19.6%

B.反应后甲所得溶液中溶质一定只有硫酸锌

C.乙实验中所得氢气的质量是甲的2倍

D.反应后乙所得溶液中还含有硫酸

题型:单项选择题 A1/A2型题

某化合物完全燃烧时消耗了7.2g氧气,生成了6.6g二氧化碳和5.4g水,则该化合物中(  )

A.含有碳、氢、氧三种元素

B.含有碳、氢两种元素

C.含有碳氧两种元素

D.含有碳、氢元素,可能含有氧元素

题型:单项选择题 A1/A2型题

代理记账机构为委托人编制的财务会计报告,只需经委托人签名并盖章后,就可以对外提供。( )

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