（）是一个文件恢复程序，利用它能够恢复被删除的重要信息。A、Easyrecovery

Bolivia has a population of three and a half million. About one tenth of the total population are white; one-fourth are mixed Indians and white; and more than half are full-blooded Indians. The government and the industries are under the control of the white people.

The Indians today live in much the same way as their ancestors. Most of them are farmers. Many work in the mines, for mining is the most important industry on Bolivia’s. Of all the mining products, tin is the most important, which makes up three-fourths of all Bolivia’s exports. The eastern slopes of the Andes, since there are very few roads there, are fertile but not highly developed. The two primary means of transportation are river boats and porters. East of the hill region is the great plains where tropical plants are grown. A serious problem for Bolivia is the transport of food from the warm regions, where it is grown to the mountainous regions, where most of the people live.

Bolivia gained its independence from Spain about a hundred years ago. It has been slow in developing, but its rich resources promise a better future in it.

小题1:.

The majority of the Bolivian population are        .

A．full-blooded Indians

B．mixed Indian and white

C．white citizens

D．all whites and mixed-blooded people小题2:.

. The Indian’s way of life today is       .

A．quite different from that of their ancestors

B．quite interesting

C．almost the same as their ancestors’

D．very exciting小题3:.

The main product Bolivia exports is        .

A．tropical plants

B．gold and silver

C．tin

D．food小题4:.

Bolivia has been slow in developing, but it has hope for a better future because of its        .

A．mining products

B．rich resources

C．independence from Spain

D．two primary means of transportation

已知N₄分子的结构和P₄（白磷）分子的结构相似（正四面体），断裂1mol N-N键吸收167kJ热量，生成

1mol N≡N键放出942kJ热量。下列说法正确的是 [ ]

A．N₄与N₂互为同素异形体

B．N₄转变为N₂将吸收热量

C．N₄与P₄互为同分异构体

D．制备N₄的热化学方程式可表示为：2N₂（g）＝N₄（g）△H=+1216kJ·mol^-1

一般来说，沸腾炉温度在500℃以下底料没有红光，600～700℃呈暗红色。

在不考虑与权益和企业合并时相关的递延所得税的情况下，下列有关递延所得税资产或递延所得税负债表述中，正确的有( )。

A．递延所得税资产转回时会增加转回期间的所得税费用

B．递延所得税资产转回时会减少转回期间的所得税费用

C．递延所得税负债转回时会增加转回期间的所得税费用

D．递延所得税负债转回时会减少转回期间的所得税费用

以下程序运行后的输出结果是
#include＜stdio.h＞
#include＜stdlib.h＞
main()
　int *a, *b, *c;
　a=b=c(int *) malloc(sizeof(int));
　*a=1; *b=2; *c=3;
　a=b;
　printf("%d, %d, %d\n", *a, *b, *c)；

A．3，3，3

B．2，2，3

C．1，2，3

D．1，1，3