单项选择题

The example of Henry Ford's attitudes towards competition was used to illustrate （）

A．the causes for his successes
B．some of his failures
C．another part of his personality
D．why he was left behind the modem competition

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单项选择题

Laser-doppler radar is especially valuable in space missions because （）

A．it is one thousand times more precise than microwave radar
B．it provides precise measures of the velocity of space vehicles
C．it is a new system of radar
D．it can measure the movement of a spaceship less accurately than a microwave radar

单项选择题

Bond realized that he was being followed by means of ______. ( )

A．his common sense
B．his sense of humour
C．his sight
D．his sixth sense