无明确潜伏期的感染，规定入院（）小时后发生的感染为医院感染。

（20vv•湖南模拟）室温时，关于电解质溶液的下列判断正确的是（　　）

A．pH=l的溶液中，Na⁺、NO^-₃、Cl^-、Fe²⁺能大量共存

B．pH=3的H₂SO₄溶液和pH=10的NaOH溶液恰好中和，则两溶液的体积比是10：1

C．AgCl在同浓度的NaCl和CaCl₂溶液中的溶解度相同

D．相同物质的量浓度的NH₄Cl和NaHCO₃等体积混合后，c（NH₃•H₂O）+c（OH^-）+c（CO^2-₃）=c（H⁺）+c（H₂CO₃）

下列哪些因素与白血病的发病有关（）。

A.病毒感染

B.潮湿的环境

C.遗传

D.氯霉素

E.免疫缺陷

When buying from a dealer, the law says that a car must be:

As described:

This includes the history of the car as well as its specification. For example, if the dealer described the car as previously having “one careful lady owner”, it shouldn’t turn out to have had several previous “boy racer” owners.

Of satisfactory quality:

It must meet the standard that a reasonable person would regard as acceptable and be free from any quality problem. Also, bear in mind that a second-hand car will have a slightly different definition of what is considered “satisfactory, because there’s certainly an element of wear and tear.

Fit for the purpose:

It must be reasonable fit for any normal purpose and this includes any purpose that you specify to the seller.

●If any of the above is violated, then in theory, you may have the right to reject the vehicle and get your money back if you’re reasonably quick. Alternatively, the dealer might offer to replace or repair the car; reduce the price of offering a partial refund(退款). Once you’ve informed the dealer that you wish to reject the car, you must stop using the vehicle.

●If the rejection is not accepted, then it’s up to you to prove your case. You’ll need to pay for an independent assessment of the car and sue for damages. If you do choose a repair, insist the dealer provide you with a hire car or pay any reasonable traveling expenses thus produced while your new car is in the garage.

●If the car is new, it’s likely that the claim will be too high to be fought. Using the small claims procedure to you may have to pay for legal representation. All this can be pretty daunting and expensive. You need to weigh up the pros and cons before rejecting a car. Would a repair do just as well? Selecting a dealer who offers a clear exchange policy may help.

小题1:After the above writing, you will be better at           .

A．choosing a car

B．dealing with car sellers

C．making a claim

D．suing for damages小题2:According to the text, what is essential after you inform the dealer of your wish to reject the car________?

A．Suing for damages.

B．Demanding traveling expenses.

C．Stopping using it.

D．Proving your case.小题3:If the dealer offers to repair the car you have bought, which of the following is acceptable_______?

A．Asking the dealer to provide you with a hire car.

B．Asking the dealer to provide you with repair tool sets.

C．Asking the dealer to pay all of your traveling expenses.

D．Asking the dealer to return all your money.小题4:Which of the following words has the closest meaning to the underlined word “daunting” in the last paragraph________?

A．Different.

B．Effective.

C．Discouraging.

D．Convenient.小题5:What does the writer want to say in the last paragraph_________?

A．Buyers should select a dealer that offers to repair the car.

B．Rejecting a new car is not necessarily the best choice.

C．It’s necessary that a new car should be repaired.

D．Buyers should never reject a new car.

认为“管理就是计划、组织、控制等活动的过程”的学者是（）

A.赫伯特•A•西蒙

B.托尼•布洛克特

C.弗里蒙特•E•卡斯特

D.小詹姆斯•H•唐纳利

双活塞杆液压缸，当支座固定，活塞杆与运动件固联时，其运动件的运动范围等于液压缸有效行程的（）。

A、二倍

B、三倍

C、四倍

D、一倍