如何描述疾病的流行强度?

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问题:

如何描述疾病的流行强度?

考点:医学免疫学免疫规划免疫规划题库
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My friend Matt and I arrived at the Activity Centre on Friday evening. The accommodation wasn't wonderful,but we had everything we needed(beds,blankets,food),and we were pleased to be out of the city and in the fresh air.

 On Saturday morning we met the other ten members of our group. Cameron had come along with two friends,Kevin and Simon,while sisters Carole and Lynn had come with Amanda. There were some other members I didn't know. We had come from different places and none of us knew the area.

 We knew we were going to spend the weekend outdoors,but none of us was sure exactly how. Half of us spent the morning caving while the others went rock-climbing and then we changed at lunchtime. Matt and I went to the caves(岩洞) first. Climbing out was harder than going in,but after a good deal of pushing, we were out at last. Though we were covered with mud,we were pleased and excited by what we'd done.

根据短文内容,选择正确答案。

小题1: The writer spent the Saturday morning _____.

A.rock-climbing

B.sleeping

C.meeting friends

D.caving小题2:There were _____ members in all in the writer's group.

A.6

B.8

C.l0

D.12小题3:We can learn from the passage that _____.

A.some of the group had been there before

B.the group had done rock-climbing many times

C.some of the group already knew each other

D.group all came from the same city小题4:The write thought her weekend was _____.

A.interesting

B.relaxing

C.frightening

D.unpleasant小题5:This passage mainly talks about ____.

A.the writer's friends at the Activity Centre

B.the writer's experience at the Activity Centre

C.outdoor sports at the Activity Centre

D.how to go rock-climbing and caving

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所有偶数的公约数是2.______.

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What a triumph. Bank shares are rising, the FTSE 100 index is back where it was a week ago, and the queues have evaporated. Not many people are putting new deposits in Northern Rock, but a few are taking a punt on its shares. Order is restored. Actually, that 8o//00 rise in Northern Rock’s share price is very embarrassing for the authorities. It reflects the fact the bank is worth more because its deposits are guaranteed by the Treasury. That looks like a straightforward bail—out for Northern Rock’s shareholders, exactly the outcome the Bank of England has warned would store up trouble for the future.
The Bank is right, of course. If all deposits at all banks were to be guaranteed—which seems to be the implication of the chancellor’s statement—the state is potentially accepting an enormous liability. Worse, an odd incentive is created: managements who are insulated from a run on their bank might be inclined to take wilder risks with the cash. The chancellor and the Bank also know that, which is why Monday’s emergency sticking plaster will be replaced by something more permanent and more sensible once the storm passes.
The US model seems to be the one the Bank has in mind. Over there, 100% guarantees are given on sums up to $100,000 (£50,000) and deposits are returned within days of a bank’s failure. There is little need to fill in forms, which seemed to be another worry for those queueing at Northern Rock’s branches. The US-style system seems infinitely fairer on customers, who can’t reasonably be expected to assess the merits of various banks’ business models before deciding where to place their savings. It should also prevent bank runs that last for days and provoke panic at more solid outfits.
But what about the incentive to managements to bet such guaranteed deposits in wacky ways That is where reform becomes complicated. If deposits, up to a certain sum, are to be guaranteed by the state, then the state needs to be compensated for taking on that risk. How about a higher rate of tax on banks’ profits, or some other form of annual charge based on a bank’s capital ratios Banking bosses and their investors would scream at the idea, but it’s perfectly logical. In fact, as part of the deal, the state should probably also demand tighter regulation of banks’ activities. That means rethinking the role of the Financial Services Authority, which has responsibility for banking supervision. Until now, the FSA’s "light touch" approach has been applauded around the world, especially on Wall Street, where bankers look enviously at a British system based on the sensible application of principles rather than hard—and—fast rules.
But Northern Rock is not a terrific advert for the FSA’ s style of doing things. It is unfair to say the regulator was asleep—it has warned as much as anybody of the risks posed by the complexity of modern financial markets. But it is fair to say that banks and financial institutions are less inclined to listen to a watchdog that prefers to bark rather than bite. Overkill would be even worse, but the balance may have to be addressed.
Over in the US, they have a different way of dealing with the global credit crunch which caused so many problems for Northern Rock. They cut interest rates at the first sign of trouble. True to form, the US Federal Reserve cut rates by 0.5% last night. The stock market loved it. But snap reactions are often wrong. The Dow Jones Industrial Average soared at news of the cut. It was reminiscent of January 2001 when a cut of the same size- designed to ease the effects of the deflating dotcom bubble-provoked a one-day, 299-point rise in the Dow. Over the next eight weeks, however, the Dow fell by 1,600 points. Why Simply the realization that the Fed’s fears of a recession were well-founded.
Could we see a similar storyline this time Quite possibly. The danger in a 0.5% cut is that Ben Bernanke, the Fed chairman, does serious damage to the value of the US dollar, which is already at an all-time low against the euro. The US is struggling to attract investment from overseas to fund its current account deficit; Bernanke has just made the task harder. He is also sending a direct signal that the risk of recession in the US is real. The idea that an aggressive cut is good news may not last long, and indeed the Fed’s statement spoke about promoting economic growth over time. The phrasing was hardly bullish.

Paraphrase the underlined part in the sentence "But it is fair to say that banks and financial institutions are less inclined to listen to a watchdog that prefers to bark rather than bite".(para. 5)

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()用于除锈和打毛旧涂层,提高新旧涂层的附着力。

A、敲锈锤

B、铲刀

C、砂布、砂纸

D、钢丝刷

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大连港“()”的企业价值观。

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