承包人停止施工超过( )天，发包人仍不支付工程款，承包人有权解除合同。
A．15B．28C．40D．56
参考答案：D
Before my father moved off, he told me again and again that I should ______ the rules and regulations of
the school. [ ]
A. make
B. watch
C. remain
D. observe
可与口服铁制剂同服的药物是（）
A.碳酸氢钠
B.二巯丙醇
C.维生素C
D.西咪替丁
E.含鞣酸的药物
again that I s
hould ______ the rules and regulations of