1、【题目】The flower bud of a water lily 百合 opens at sunset since .its opening is triggered(commence) .by the decreased light.
选项:
A.alleviated减轻
B.endured
C.setoff
D.coveredup
答案:
C
解析:
暂无解析
1、【题目】Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
选项:
A.hand-carved
B.roughlymade
C.flat
D.heavy
答案:
解析:
1、【题目】Double Eagle in the first transatlantic balloon, was greeted by avid crowds in France.
选项:
A.eager
B.surging
C.appreciative
D.vigorous
答案:
A
解析:
暂无解析
1、【题目】Bats fly, rather than glide, and thus are the only mammals capable of true flight.
选项:
A.straight
B.safe
C.real
D.rapid
答案:
C
解析:
暂无解析
1、【题目】Peoplewhodonotsleepenoughtendtobecomeirritable.
选项:
A.easilyannoyed
B.ill
C.weary
D.stiffandsore
答案:
解析:
1、【题目】The Salk vaccine is a major factor in the fight to eradicate polio.
选项:
A.completelydestroy
B.carefullydisguise
C.sustain
D.contain
答案:
A
解析:
暂无解析
1、【题目】The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.
选项:
A.occurrence
B.remnants残留物
C.witnesses
D.parallel
答案:
D
解析:
暂无解析
1、【题目】The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.
选项:
A.veryfriendly
B.veryuseful
C.verythoughtful.
D.verywealthy
答案:
B
解析:
暂无解析
1、【题目】The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.
选项:
A.slithering
B.radiating
C.interfering
D.murmuring
答案:
B
解析:
暂无解析