缺铁性贫血的输血指征是() A.严重贫血伴心功能不全 B.贫血伴精神症状 C.贫血伴

题型:多项选择题

问题:

缺铁性贫血的输血指征是()

A.严重贫血伴心功能不全

B.贫血伴精神症状

C.贫血伴肝脾大

D.严重贫血伴感染者

E.中度以上贫血

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题型:多项选择题
阅读理解。
          Do you still get free plastic bags from the supermarkets? Things have changed.
          China has banned (禁止) free plastic bags at shops and supermarkets, and people have to pay for using
plastic bags. The rule started on June 1st. It came because our country tried to make litter less. Making super-
thin plastic bags has also been banned.
          The Chinese once used about 3,000,000,000 plastic shopping bags a day, and they have caused pollution
of the environment. The bags have become a main cause of plastic pollution because they are easy to break and
people throw them away here and there. So the Chinese people are encouraged to bring their own bags for
shopping.
           What kind of shopping bag is the best to bring? Some students in chongqing have a good idea. They
make their own shopping bags. They use old clothes to make cloth bags and send to their parents as presents.
They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to
protect the environment.
1. People in China have to ________ now.
[ ]
A.Throw plastic bags here and there
B.collect plastic bags in the street
C.pay for using plastic bags at shops and supermarkets
D.use free plastic bags at shops and supermarkets
2. China made this rule because plastic bags were bad for the _______
[ ]
A.environment
B.litter
C.shops
D.supermarkets
3. The Chinese people are encouraged to bring _______ for shopping.
[ ]
A.no bags
B.free plastic bags
C.their own bags
D.super-thin plastic bags
4. Some students in Chongqing _____________.
[ ]
A.ask their parents to make cloth bags
B.make cloth bags themselves
C.pick up plastic bags everywhere
D.buy cloth bags for their parents
5. What is the main idea of this article?
[ ]
A. Making super-thin plastic bags has been banned in China.
B. The bags have become a main cause of plastic pollution.
C. Some students in Chongqing begin to make their own shopping bags.
D. To protect the environment, free plastic bags have been banned in China.
题型:多项选择题

为探究细菌对植物落叶是否具有分解作用,某小组的同学提出了两种实验方案.两种实验方案的共同特点是:将同一种树的落叶平均分成甲、乙两组;实验过程中滴加等量蒸馏水,使树叶保持潮湿;甲、乙两组的实验环境温度适宜且相同.不同之处是:方案一是将甲组灭菌后放在无菌条件下,乙组一直放在自然条件下;方案二是将甲乙、两组都先进行灭菌处理,然后甲组放在无菌条件下,乙组接种某种细菌后放在无菌的条件下.请分析以上方案,回答下列问题.

(1)在实验时,某小组的同学们提出的假设可能是______.

(2)实验中,甲乙两组使用相同树叶的目的是______.

(3)实验中要保持树叶潮湿的原因是______.

(4)实验中保持适宜环境温度的原因是______.

(5)两组实验方案都遵循了实验设计的______原则和______原则,对比方案一和方案二,你认为较合理的方案为______.

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17世纪以来,有关克伦威尔的著作,源源不断地大量涌现。卷帙浩繁的著作,不但内容广泛,而且思想差异很大,对克伦威尔的评价,更是褒贬臧否,应有尽有,可以说是千差万别。

材料一 许多评论家指责他(克伦威尔)是伪君子,指出他虽然总是在口头上赞成议会有至高无上的权力和反对独断专行的统治,但是在事实上却建立了一种军事独裁统治。

——迈克尔·H·哈特《历史上最有影响的100人》

材料二 “是古往今来,英国人中最伟大的人 ”“他是兼罗伯斯比尔与拿破仑于一身”

——恩格斯

材料三 如果说在危急的关头,克伦威尔的宝剑曾拯救了议会事业的话,那么毕竟他在历史面前是一个以独裁和军事统治者的面貌而出现的,他作为士兵和政治活动家的全部品质,却是和英国人民的天性永不协调的。                         

——丘吉尔《英国民族的历史》

材料四 在我们的时代,有许多人怀着巨大的敬意回忆起克伦威尔,他是一个虔诚的为了国家的自由而奋斗的战士。

——纳萨尔奇·克鲁奇《克伦威尔的历史》

材料五 国家本来可能在一个短时期达到人类所向往的幸福境界的,然而却由于他一个人的野心而使所有善良的人的希望破灭了。

——英国资产阶级革命时期进步的共和主义者赖德洛

材料六 克伦威尔处死国王及建立共和国完全是处于人民的压力下不得已才实行的,而其后来进行军事独裁统治才是其政治目的。

——纳萨尔尼·克鲁奇《克伦威尔的历史》

材料七 “没有真心实意地努力满足当时的社会需要, 而只图填个人欲壑,终于导致了封建王朝的复辟”。

——英国史研究会第二届学术讨论会侧记[J].世界历史.1982年06期

1.据材料一到四可以看出,当今国内外史学界对克伦威尔的评价在哪些方面已经达成了共识,在哪些方面还存在分歧?(4分)

2.你怎样看待材料五到七对克伦威尔的评价。(2分)作为后人,我们该如何评价前人的千秋功过?(2分)

3. 人类社会历史长河中任何一个人的活动总要受到历史发展规律的制约。你如何认识克伦威尔建立独裁统治与资产阶级民主之间的关系?(2分)

题型:多项选择题

Growing all over the hill and around the lake _____ of different colours. [ ]

A. are wild flowers

B. wild flowers are

C. is a wild flower

D. a wild flower is

题型:多项选择题

计算题:已知某高炉规定作业时间为350天/年,休风时间为5天/年,求该高炉的休风率?

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