群体与集体有何区别？

Raj？opens？up？a？lemonade？stand？for？two？hours.？He？ spends？$10？for？ingredients？and？sells？$60？worth？of？lemonade.？In？the？same？two？hours,？he？could？have？mowed？ his？neighbor’s？lawn？for？$40.？Raj？has？an？accounting？ profit？of？______？and？an？economic？profit？of？______. a.$50,？$10 b. $90,？$50 c. $10,？$50 d. $50,？$90

S：Two yuan．

P：That’s all right． 4

There are ______ Russian(s) and ______ American(s) on board.

A．one, one

B．one, two

C．two, two

D．two, one

SECTION B NOTE-WRITING (10 MIN)

Write on ANSWER SHEET TWO a note 9f about 50 - 60 words based on the following situation:

Your neighbor Kate's sound system interrupts your sleep at midnight. Write a note to show your complaint.

Marks will be awarded for content, organization, grammar and appropriateness.

有以下程序 main () { char *s[]={"one","two","three"},*P; p=s [1]; printf ("%c, %s\n", *(p+1) ,s[0] ); } 执行后输出结果是

A．n,two

B．t,one

C．w,one

D．o,two