单项选择题

The key factor to reduce society's vulnerability to natural disasters is

A．insurance companies should be wise enough in their estimates of losses.
B．the government should bear some financial risks of disaster insurance.
C．the general public should be made fully aware of the possible damages.
D．technology should be improved and phases of prediction be considered.

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单项选择题The result of the increasing costs in natural disasters is

A．great loss suffered by commercial companies.
B．government's increased attention on disasters.
C．individual awareness to natural disasters.
D．more funds to support the prediction research.

单项选择题According to the passage, human competition to develop the best weapons

A．began in the 20th century.
B．escalated in the 20th century.
C．is a modern phenomenon.
D．is genetically predetermined.

单项选择题When the author reflects on the linked interdependence of attack and defense, he suggests that

A．their origin preceded life.
B．their development is precipitated by one another.
C．their existence is dependent on human aggression.
D．their escalation cannot be halted.

单项选择题In this passage the author apparently intends to

A．write a fictionalized account of evolution.
B．be scientifically precise.
C．raise philosophical issues.
D．convince readers that war is inevitable.

单项选择题Gradually March seems to be in a state of

A．blankness.
B．imagination.
C．sadness.
D．excitement.