Which of the following nursing diagnoses would be most appropriate for a client newly diagnosed with non-insulin-dependent diabetes mellitus

A. Risk for infection related to newly diagnosed diabetes.
B. Altered nutrition, more than body requirements related to overproduction of insulin.
C. Altered health maintenance related to lack of knowledge of proper foot care.
D. Pain related to elevated blood glucose levels.

如果在地图上量得两地间的直线距离为3厘米，图上比例尺为1：6000000，算得两地间实地距离[ ]

A．18千米

B．180千米

C．1800千米

D．18000千米