电视、示波器等电子显示设备的基本波形为矩形波和锯齿波。( )
参考答案:B
何为少尿()
A.24小时尿量少于1000ml
B.24小时尿量少于700ml
C.24小时尿量少于500ml
D.24小时尿量少于400ml
E.24小时尿量少于100ml
We _______him on his birthday and held a party to _______it.
A.congratulated; congratulate
B.celebrated; celebrate
C.celebrated; congratulate
D.congratulated; celebrate