[单项选择]Paul is standing 180 yards due north of point P, Franny is standing 240 yards due west of point P. What is the shortest distance between Franny and Paul ？（）
A. 60yards
B. 300yards
C. 420yards
D. 900yards
E. 9，000yards

[单项选择]At 9 a.m, a hiker was due south of point P. What direction was point P from her position at noon ？（）
(1)From 9 a.m until 11 a.m she walked due east at 2 miles per hour, and from 11 a. m until noon, she walked due north at 3 miles per hour.
(2)At noon, she is exactly 4.5 miles from point P.
A. 条件(1)充分，但条件(2)不充分．
B. 条件(2)充分，但条件(1)不充分．
C. 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D. 条件(1)充分，条件(2)也充分．
E. 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

[填空题]Paul Smith

[单项选择]

A Desert Between Paul and Clara
Paul had long promised to marry Clara. But at thirtythee he met and married Alice. Clara was driven mad.
Paul was taken to court. The judge ordered him to pay Clara$600 because of the broken promise. Paul had to borrow the money from a moneylender. He agreed to pay back$5 a month—for twenty years. His wages at the time were $16 a month.
Paul and Alice were poor but not unhappy. They had little enough food, certainly, even before the children began to arrive. Each month Paul paid$5 to the moneylender. He worked hard, never taking a holiday. In time, there were seven mouths to feed.
Illness was always with them. It grew serious when the oldest child was eight. The years of hunger weakened the family, because each month Paul paid$5. The details of the sickness were ugly, but the result was this：after twelve years of family life, Paul was alone in the world.
He lived alone. except for memor
A. he had borrowed $600 from her.
B. he had broken his word to marry her.
C. he had promised to give her$600.
D. he had spent a lot of her money.

[简答题]A. Due from banks B. Due to banks
C. Accounts Receivable

[单项选择]

Set 1
NORTH AMERICAN GRASSLANDS
1.In North America, native grasslands occur primarily in the Great Plains in the middle of the continent. The North American prairie biome is one of the most extensive grasslands in the world, extending from the edge of the Rocky Mountains in the west to the deciduous forest in the east, and from northern Mexico in the south to Canada in the north. Average annual rainfall ranges from about 40 cm (16 inches) in the west to 80 cm (31 inches) in the east. Average annual temperatures range between 10 degrees and 20 degrees Celsius (50 to 68 degrees Fahrenheit). In the moist regions of the North American grasslands, especially in the northern Great Plains, rainfall is distinctly seasonal, and temperatures can vary widely from very hot in summer to bitter cold in winter.
2.One hundred years ago, the Great Plains grasslands were one vast, unbroken prairie. Much of the prairie is now farmland, the m
A. the emission of carbon dioxide from cars, factories, and power plants
B. the action of carbon dioxide as a greenhouse gas
C. the capture and storage of carbon dioxide in trees, soil, and plants
D. the average amount of carbon dioxide in one acre of land