19. Color-blind people often find it difficult to ______ between blue and green. A. separate B. distinguish C. compare D. contrast<distinguish>...
18. Mr Johnson had given no _____ that he was intending to resign. A. distinction B. direction C. information D. indicationresign 辞职assign 分配design 设...
17. A _____ heart beats around seventy-six times a minute. A. delicate B. normal C. formal D. peculiar <normal>normal 正常的abnormal 不正常的enormous ...
16.Mr Russel is a good teacher, but he often gives ____ lectures. A. excellent B. extensive C. sound D. tedioustedious 很郁闷的、很惹人烦的、单调乏味的excellent 优秀的、...
15. Worldwide demand for more _____ technology continues to grow. A. subtle B. experienced C. sophisticated D. refinedsophisticated 复杂的、久经世故的subtle 巧...
14.They work long hours but don't earn enough to ensure a _____ living for themselves and their families. A. reticent B. decent C. innocent D. des...
13. The outward _____ may increase as anti-immigrant fever spreads in the united states. A. departure B. exodus C. contagion D. adagedeparture 离开depa...
12. The evidence showed that the hanged man could be ____ of murder. A. ignorant B. innocent C. indecent D. tolerantinnocent 无辜的、天真的ignorant 忽视的、无知的i...
11. The most advanced communication ______ can pass information to any member state in no more than five seconds. A. furniture B. facilities C. equipm...
10. Many distinguished men have ____ from slums. A. emanated B. appeared C. loomed D. emerged<slum>slum 贫民窟</slum><emanate>emanate ...