抗人球蛋白试验阳性时，应首先怀疑的疾病是（）。 A.再生障碍性贫血 B.白血病 C.

如图所示的实验装置为库仑扭秤．细银丝的下端悬挂一根绝缘棒，棒的一端是一个带电的金属小球A，另一端有一个不带电的球B，B与A所受的重力平衡，当把另一个带电的金属球C插入容器并使它靠近A时，A和C之间的作用力使悬丝扭转，通过悬丝扭转的角度可以比较力的大小，便可找到力F与距离r和电量q的关系．这一实验中用到了下列哪些方法（　　）

A．微小量放大法

B．极限法

C．控制变量法

D．逐差法

下列关于企业所得税纳税申报，表述不正确的是（）。

A.企业所得税应分月或者分季预缴

B.企业清算时，应当以清算期间作为一个纳税年度

C.企业在年度中间终止经营活动的，应当自实际经营终止之日起45日内，向税务机关办理当期企业所得税汇算清缴

D.企业在一个纳税年度中间开业，或者终止经营活动，使该纳税年度的实际经营期不足十二个月的，应当以其实际经营期为一个纳税年度

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 6^th 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

我行规定，在实行按时还款利息优惠政策时，阶段性等额本息还款法的连续还款期从首次（）开始计算。

预计某宗房地产未来第一年的净收益为18万元，此后各年的净收益会在上一年的基础上增加1万元，该类房地产的资本化率为8%，该房地产的价格为( )万元。

A．225.00

B．237.50

C．381.25

D．395.83