卫生许可证的发放管理办法应由哪一部门制定() A.在中华人民共和国领域内从事食品生产

题型:单项选择题 B型题

问题:

卫生许可证的发放管理办法应由哪一部门制定()

A.在中华人民共和国领域内从事食品生产经营的

B.任何人

C.国务院卫生行政部门

D.工商行政管理部门

E.省、自治区、直辖市人民政府卫生行政部门

考点:职业卫生主治医师卫生法卫生法题库
题型:单项选择题 B型题

缓解需求不足性失业的对策是()

A.只能依赖市场以外的力量使失衡的市场均衡

B.依靠市场自身的力量无法实现充分就业的国民收入均衡

C、只能依靠政府的宏观调控

D.政府通过发行货币进行调节

E.刺激总需求及扩大有效供给是解决需求不足性的根本方向

题型:单项选择题 B型题
单项式-
4xy2
3
的系数为______,次数为______.
题型:单项选择题 B型题

黄土高原上的能源矿产丰富,主要的种类是(  )

A.煤

B.石油

C.水能

D.天然气

题型:单项选择题 B型题

“Mobile phone killed my man,” screamed one headline last year. Also came claims that an unpublished study had found that mobile phones could cause memory loss. And a British newspaper devoted its front page to a picture supposedly showing how mobile phones could heat the brain.

For anyone who uses a mobile phone, these are worrying times. But speak to the scientists whose work is the focus of these scares and you hear a different story.

One of the oddest effects comes from the now famous “memory loss” study. Alan Preece and his colleagues at the University of Bristol placed a device that imitated the microwave radiation of mobile phones to the left ear of volunteers. The volunteers were good at recalling words and pictures they had been shown on a computer screen. Preece says he still can’t comment on the effects of using a mobile phone for years on end. But he rules out the suggestion that mobile phones have an immediate effect on our cognitive(认识的)abilities. “I’m pretty sure there is no effect on short-term memory,” he says.

Another expert, Tattersall, remarked that his latest findings have removed fears about memory loss. One result, for instance, suggests that nerve cell synapses(神经元突触) exposed to microwaves become more — rather than less — receptive to undergoing changes linked to memory formation.

An even happier outcome would be that microwaves turned out to be good for you. It sounds crazy, but a couple of years ago a team led by William Adey at the Veterans Affairs Medical Center in California found that mice exposed to microwaves for two hours a day were less likely to develop brain tumours when given a cancer-causing chemical.

“If it doesn’t certainly cause cancer in animals and cells, then it probably isn’t going to cause cancer in humans,” says William. And while there’s still no absolute evidence that mobile phone use does damage your memories or give you cancer, the conclusion is: don’t be afraid.

小题1: Mobile phone users are worried because ______.

A.they are not sure whether mobile phones can cause memory loss

B.it’s said that mobile phones have a lot of side effects

C.one headline reported “Mobile phone killed my man”

D.a British newspaper showed mobile phones could heat the brain小题2: According to this passage, we can know that _____.

A.the mobile phone is a most wonderful invention

B.there’s no need to worry about the radiation from mobile phones

C.something must be done to stop people using mobile phones

D.mobile phone companies shouldn’t cheat customers小题3: What would be the best title for this passage? ______.

A.New Mobile Phones.

B.Special Mobile Phones.

C.New Special Investigation: Mobile Phones.

D.New Investigation.

题型:单项选择题 B型题

钩端螺旋体的流行形式主要分为4类,下列哪种不属于主要流行形式( )

A.雨水型
B.稻田型
C.土壤型
D.洪水型
E.散发型

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