[填空题]Many healthy people have been denied insurance or employment because of ______.

[单项选择]How many people worldwide have been infected with HIV since the start of the epidemic
A. 47 million.
B. 4 billion.
C. 25 million.
D. 44 million.

[单项选择]

How many people have been to the moon
A. 20.
B. 16.
C. 2.
D. 12.

[单项选择]How many people have been evacuated from the area
A. Nearly 2,000.
B. Nearly 20, 000.
C. Nearly 200, 000.
D. Nearly 2, 000, 000.

[单项选择]How many people have been confirmed for being exposed to radiation
A. 250.
B. 200,00.
C. At least 90.
D. 160.

[单项选择]How many people have been forced to flee their homes（）
A. 130,000.
B. 30,000.
C. 13,000.
D. 3,000.

[填空题]Pentagon. Many have been held for more than three years and the______.

[单项选择]Many scientists have been probing psychological problems.
A. solving
B. exploring
C. settling
D. handling

[单项选择]Although people of different ethnicities have been mixing for centuries, the subject of interracial relationships is still controversial. Even now, mixed couples (67) many obstacles, including laws restricting inter-racial (68)
It was only in 1967 (69) the United States finally struck down its anti-miscegenation laws. Opposition to interracial relationships exists for different (70) , but what it usually boils down to is racism. (71) the world is becoming (72) , the number of interracial (73) is growing, especially in countries (74) large numbers of (75) . For interracial couples, love knows no color. Cultural differences are just another (76) of the relationship to work through. But as interracial dating is becoming (77) , it does not treat all ethnic groups (78) . In the United States, the vast (79) of white black couples involve a black man and a white woman. Converse