试灯有正、负灯之分，线夹接负极线时称为正灯。
参考答案：错
魏氏血沉法成年女性的参考范围（mm／h）为（）
A.0～5
B.0～10
C.0～15
D.0～20
E.5～15
_____ she had not spelt the word wrong, Cathy would have got a full mark.
A．If
B．Since
C．Though
D．When
