单项选择题
A beam of light will not bend round comers unless made to do so with the help of a reflecting device.
A.除非有反射装置的帮助,使得光线在拐弯处弯曲,否则光线是不会弯曲的。
B.光线在拐弯处将不会弯曲,除非在反射装置的帮助下使它弯曲。
C.如果不用反射装置使光线弯曲的话,光线在拐弯处是不会弯曲的。
D.即使有反射装置的帮助,光线在拐弯处也不会弯曲。
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单项选择题
One feels rather relaxed when sitting here, enjoying the beauty of nature, in the shade of these ancient trees.
A.坐在这里欣赏自然之美和古树的林荫,使人感到很放松。
B.坐在这些古树的林荫下,欣赏着大自然的美丽,真使人感到轻松愉快。
C.坐在这里欣赏古树林荫下自然之美,使人感到很相当轻松。
D.在古树的林荫下坐着欣赏自然之美,使人感到相当的轻松愉快。
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单项选择题
The speaker, ______ for his eloquent speeches, was warmly received by the audience.
A.having known
B.being known
C.knowing
D.known
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