单项选择题

It can he inferred from the passage that the author was （）

A．a scientist as well as a naturalist
B．a naturalist but not a scientist
C．no more than a born naturalist
D．first of all a scientist

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热门试题

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Why did Bond stop in the doorway to the underwear shop（）

A．To sac who was following him.
B．To look at the man in the fun suit.
C．To avoid the sunshine.
D．To look at the underwear.