V带传动的张紧轮应装在()
A.松边内侧靠近小轮处
B.松边外侧靠近小轮处
C.松边内侧靠近大轮处
D.紧边内侧靠近大轮处
参考答案:C
额定功率:用电器______工作时的实际功率.
.---Let's go to the seaside for fresh air,OK?
---_______.
A.Not at all.
B.Why not?
C.Never mind.
D.What of it?