某同学感冒发热39度,伴有轻度腹泻。与病前相比,此时该同学的生理状况是() A.呼吸

题型:单项选择题

问题:

某同学感冒发热39度,伴有轻度腹泻。与病前相比,此时该同学的生理状况是()

A.呼吸、心跳加快,心肌细胞中ATP大量积累

B.汗液分泌增多,尿量减少,血浆Na+浓度降低

C.甲状腺激素分泌增多,代谢增强,产热量增加

D.糖原合成增强,脂肪分解加快,尿素合成增多

考点:高中生物人和高等动物的神经调节人和高等动物的神经调节题库
题型:单项选择题

Do you ever wonder how some things came about? For instance, who figured out that there was something worth eating inside a banana peel? Or how astonishing do you have to be to discover that an artichoke has edible parts? Well, we may not know how either of those foods was discovered, but we do know how potato chips were invented.

Potato chips originated in New England as one man’s variation on the French-fried potatoes, and their production was the result not of a sudden inspiration of cooking invention but of a fit of annoyance.

It was the summer of 1853 and Commodore Vanderbilt, a wealthy railroad magnate, was vacationing at a hotel named Moon Lake Lodge in New York. On the restaurant menu were French-fried potatoes, prepared in the thick-cut French style that was popularized in France in the 1700s and enjoyed by Thomas Jefferson as ambassador to that country.

At dinner one night, Vanderbilt complained that his French-fried potatoes were cut too thick and sent them back to the kitchen. Offended by his snobbyguest, chef George Crum decided he would give Mr. Vanderbilt exactly what he asked for! He decided to annoy the guest by producing French fries too thin and crisp. The chef angrily gathered up some potatoes and sliced them paper-thin. He threw the slices into hot oil to fry, drained and salted them and then personally served the new dish to Mr. Vanderbilt.

Surprised to see the chef in the dining room, the other diners fell into silence and everyone held their breath, waiting for Vanderbilt’s reaction.

Vanderbilt immediately popped a crisp potato slice into his mouth and the loud “Crunch” broke the silence. He continued to crunch away, delighted with his new dish. The plan backfired. Vanderbilt was interested in the browned, paper-thin potatoes. Clapping a surprised Chef Crum on the back, Vanderbilt praised him on the impressive potatoes. And other diners requested Crum’s potato chips, which began to appear on the menu as “Saratoga Chips”, a house specialty. Soon they were packaged and sold, first locally, then throughout the New England area. Crum eventually opened his own restaurant, featuring chips. At that time, potatoes were peeled and sliced by hand. It was the invention of the mechanical potato peeler in the 1920s that paved the way for potato chips to rise quickly from a small specialty item to a top-selling snack food.

小题1:.

The author wrote the first paragraph to         .

A.tell us how potato chips were invented

B.introduce the topic dealt with in the passage

C.give examples of how some things came about

D.explain why we do know how those foods were discovered小题2:.

. According to the passage, chef George Crum         .

A.invented potato chips by accident

B.opened his own restaurant, featuring potatoes

C.served the new dish to Mr. Vanderbilt in private

D.helped promote potato chips to a top-selling snack小题3:.

. The production of potato chips was the result of         .

A.Mr. Vanderbilt’s praise for the new dish

B.Thomas Jefferson’s appreciation of the French Fries

C.George Crum’s anger at Mr. Vanderbilt

D.the invention of the mechanical potato peeler小题4:.

The underlined word “backfired” in the 6th paragraph probably means           .

A.developed in a successful way

B.made a big difference

C.happened in a particular way

D.had an opposite result

题型:单项选择题

下列现象中,能够说明物质的分子在不停地做运动的是[ ]

A.打扫除时,教室里有灰尘飞扬

B.水从高处流向低处

C.放在空气中的铁器过一段时间生锈了

D.在一杯白开水中放入白糖,整杯水都有甜味了

题型:单项选择题

营养性缺铁性贫血的实验室诊断要点为()

A.总铁结合力降低

B.血清铁减低

C.MCV减少,MCH及MCHC减低

D.血红蛋白量降低比红细胞数降低为甚

E.血清铁蛋白降低

题型:单项选择题

少阴证,阴寒内盛四肢厥逆,恶寒蜷卧,脉微而复自下利,利虽止而余证仍在者。宜用

A.白通汤
B.四逆加入参汤
C.通脉四逆汤
D.参附汤
E.当归四逆汤

题型:单项选择题

BSC3i660只有一个机架,满配时共有()个机框。

A、10

B、15

C、20

D、25

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