Will __________ . underwater long as one hour.Two special skills are involved in this storing up enough __________. and tolerating the great change in pressure.Just how he does it scientists have not __________ . .It is believed that some of the oxygen is stored in a special __________ . of blood vessels,rather than just held in the lungs.And it is believed that a special kind of oil in his head is some sort of compensating mechanism that __________ . adjusts the internal pressure of his body.But since you cant bring a live whale into the laboratory for study, no one knows just how these things work.
51 A aspects
B signs
C ways
D reasons
52 A worked
B divided
C built
D moved
53 A at
B in
C of
D with
54A number
B degree
C distance
D rate
55A abandon
B attack
C leave
D board
56A as
B who
C which
D that
57A had
B operated
C Seen
【2013职称英语理工类B级完形填空模拟练习(1)】相关文章:
★ 2014年职称英语考试理工类A级完形填空练习题及答案(4)
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01