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单项选择题

A(n) ______ disease is one that can be passed from one person to another.

A．influential
B．infectious
C．immune
D．popular
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单项选择题Our ______ as a nation is threatened by these separatist forces.

A．integral
B．integrity
C．instability
D．intensity

单项选择题The last paragraph suggests that ______.

A．nuclear war will definitely not take place
B．international agreements are now reached more and more easily
C．man is beginning to realize that nuclear war is his greatest enemy
D．world opinion is in favor of nuclear war

单项选择题The author believes that the only way to abolish war is to ______.

A．abolish nuclear weapons
B．let the stronger side take over the world
C．improve bacteriological and chemical weapons
D．settle international issues through negotiation

单项选择题According to the author ______.

A．it is impossible to live without war
B．war is the only way to settle international disagreements
C．war must be abolished if man wants to survive
D．war will be abolished by modern ingenuity

单项选择题The author says that modern weapons ______.

A．will help abolish war
B．make mankind live in a greater threat.
C．will gradually become part of man's life
D．need further improving