There are several research centers in China ________ a certain disease called Bi
题型：不详难度：来源：
There are several research centers in China ________ a certain disease called Bird Flu is being studied. | A．which | B．where | C．when | D．what |
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答案
| B |
解析
| 因为先行词是research centers并在定语从句中作状语，所以用where。 |
举一反三
The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later. | A．who | B．when | C．on which | D．which |
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| There is no such place ________ you dream of in all this world. |
The bread my wife makes is much better than ________ you can buy at a store. | A．that which | B．one that | C．that of which | D．this of which |
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| The man showed us so heavy a stone ________ no man can lift. |
The people, ________ had been damaged by the flood, were given help by the Red Cross. | A．all whose homes | B．all of whose homes | C．all their homes | D．all of their homes |
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