利多卡因在静脉局部麻醉总剂量不应超过（） A.0.5mg/kg B.3mg/kg C

若（x+1）²+|y﹣36|=0，求x^y的值

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Have you ever seen any students whose trousers hang so low you can see their underwear? What do you think of that ? Fashionable? Some of today’s teenagers are big fans of such a look?    小题1:

The headmaster of a school in central Italy has asked students to stop wearing low-rise jeans that expose underwear and parts of the body. His request came after a class trip. One day, he saw one boy’s baggy trousers slide to his feet.  小题2:  .

But in Italy, a nation that takes fashion very seriously, the suggestion caused a debate among parents, teachers and students. The issue is whether the headmaster’s request will limit students’ freedom—or whether dress in Italian schools is too casual.

小题3: “we do not want to kick fashion out,” the headmaster explained, “ but extremes (极端)of fashion like this are not right in school.” Many other schools have now requested that their students also stop wearing such trousers.

小题4: Ludovica Gaudio,14, wore extremely low trousers exposing orange underwear in class. It was cold, so she wore a matching orange scarf.  小题5: “ I don’t really feel comfortable in those sort of jeans,” said Sarah Lattanzi, “In winter , when dressed like that ,it’s quite cold and I am afraid my stomach will ache.”

A．But recently this trend has been at the center of an argument in Italian middle schools.

B．A parents’ group praised the move in favor of good taste, while others advised schools to stop worry about fashion and fix up old school buildings.

C．He pointed out that this way of dressing is not suitable for school.

D．Most students have simply ignored the request.E.Another 14-year-old girl said she would probably respect the request, simply for practical reasons.

F.Let us see that Italian students react differently to schools’ requests.

G.Schools should pay attention to things more important than students’ clothes.

某结晶水合物的化学式为A•nH₂O，其相对分子质量为M，在25℃时，ag晶体溶于bg水中即达饱和，形成密度为ρg•mL^-1的溶液，下列表达式正确的是（　　）

A．饱和溶液的物质的量浓度为：1000a（M-18n）/M（a+b）mol•L^-1

B．饱和溶液中溶质的质量分数为：100a（M-18n）/M（a+b）%

C．饱和溶液的体积为：（a+b）/ρL

D．25℃时，A的溶解度为：100a（M-18n）/bMg

代表车床的英文单词是（）。

A.Boring machine

B.Shaping machine

C.Planing machine

D.Turning machine

2004年8月，美国甲贸易公司与我国乙进出口公司签订合同购买一批高档瓷器，价格条件为CIF纽约，支付条件为不可撤销的跟单信用证，乙方需要提供已装船提单等有效单证。甲方随后与上海丙运输公司签订了运输合同。10月，乙方将货物备妥，装上丙公司派来的货车。途中由于驾驶员的过失发生了车祸，耽误了时间，错过了信用证规定的装船日期，并造成两箱瓷器受损。请分析案例，回答下列问题：

如果乙方和甲方采取CIP方式，那么对于丙公司的驾驶员发生车祸导致的货物损失及时间损失等，应当由（）承担赔偿责任。

A.乙方

B.甲方

C.丙公司

D.甲方和乙方