三段论在两个前提中都出现的项是()
A.大项
B.小项
C.中项
D.主项
参考答案:C
—Did you catch what the teacher said?
—No. She spoke so fast _______ I couldn't hear her very clearly.[ ]
A. which
B. that
C. when
D. since
高压加热器的运行中应经常检查疏水调节门动作应(),()。各汽、水管路应无漏水、无振动。