首先提出“凡孩子3岁以下呼为纯阳,元气未散”的著作是()
A.《温病条辨》
B.《幼科要略》
C.《小儿药证直诀》
D.《颅囟经》
E.《幼幼新书》
参考答案:D
-How do you usually go to work, Miss Green?
--I usually go to work ___ foot, but sometimes __ my bike.
A.on, by
B.on, on
C.by, on
D.by, by
绘图题:在图E-61(a)各方框中填入额定电压值。