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7．She had been in doctors described as in a confused state of mind for five years．（　　）

A．

how

B．

what

C．

which

D．

that

分析她處在醫生所描述的意識混亂狀態已經五年了．

解答答案：B 題干中doctors described as in a confused state of mind for five years是作介詞in的賓語，是一個賓語從句；從句中describe缺少賓語，describe…as…把…描述成，要用連接代詞；which表示選擇，句意表達的是一種狀態，故選B．

點評在句子中起名詞作用的各種從句統稱為名詞性從句．根據它們在句中的語法作用，這類從句又可分為主語從句、同位語從句、表語從句和賓語從句．本題中what在賓語從句中起連接作用，同時又充當了從句的賓語．

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