更多"Our ape-men forefathers had no obvi"的相关试题:
[单项选择]Our ape-men forefathers had no obvious natural weapons in the struggle for survival in the open. They had neither the (1) teeth nor the strong claws of the big cats. They could not (2) with the bear, whose strength, speed and claws (3) an impressive "small fire" weaponry(武器). They could not even defend themselves by running (4) like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been (5) to failure and extinction. But they were (6) with enormous concealed advantages of a kind not possessed by any of their competitors. In the search (7) the pickings of the forest, the ape-men had (8) efficient stereoscopic(有立体感的) vision and a sense of colour that the animals of the grasslands did not possess. The ability to see clearly at close (9) permitted the ape-men to study practical problems in a way that lay far (10) A. spaces
B. aspects
C. directions
D. places