保和丸中用量最大的是（）。
A.神曲
B.莱菔子
C.茯苓
D.山楂
E.半夏
参考答案：D
Our milk powder is especially suitable for children under 6, as it helps a lot to build the body's natural ________.
A．reservation
B．defence
C．variety
D．heritage
机械性肠梗阻腹痛的特点是
A．持续性绞痛B．阵发性隐痛C．持续性绞痛伴肠鸣D．阵发性绞痛伴肠鸣E．持续性隐痛
