\_\_\_\_ the true nature of the patient's condition, she would have never prescribed such a high does.
AIf the physician would have known
BIf the physician knew
CShould the physician know
DHad the physician known正確答案
答案與詳解
為什麼答案是 D
此為第三類條件句省略 if 的倒裝寫法，等同於 If the physician had known，完全符合主句 would have prescribed 的時態要求，為正確答案。
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