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】Insect pests are among the leading causes of crop failure.
选项：
A.expected
B.chief
C.natural
D.least
答案：
B
解析：
暂无解析
1、【题目】TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.
选项：
A.veryfriendly
B.veryuseful
C.verythoughtful.
D.verywealthy
答案：
解析：
1、【题目】How many people are aware that a dancer with the New York City Ballet typically wears out a minimum of two hundred pairs of toe shoes per year?
选项：
A.only
B.exactly
C.atleast
D.fewerthan
答案：
C
解析：
暂无解析
1、【题目】The controls of most modern airplanes can be operated either manually or automatically.
选项：
A.bythebook
B.byamap
C.bylogic
D.byhand
答案：
D
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
1、【题目】By the nineteenth century, embroidery on men's clothing had virtually disappeared except for the occasional decorative vest and tie.
选项：
A.almost
B.definitely
C.already
D.universally
答案：
A
解析：
暂无解析
1、【题目】Some cosmetics manufacturers attempt to capture the rose's unmistakable fragrance香味 in soaps and perfumes.
选项：
A.design
B.texture
C.scent
D.freshness
答案：
C
解析：
暂无解析
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