A client who is 7 months pregnant reports severe leg cramps at night. Which nursing action would be most effective in helping her cope with these cramps

A．Suggesting that she walk for 1 hour twice per day.

B．Advising her to take over-the-counter calcium supplements twice per day.

C．Teaching her to dorsiflex her foot during the cramp.

D．Instructing her to increase milk and cheese intake to 8 to 10 servings per day.

为东晋之际山水诗的成熟和发展奠定了审美心理和创作基础的是（）

A.淡于寡味、平淡似《道德论》的玄言诗

B.玄言诗人对山水的体悟和描写

C.郭璞的《游仙诗》十首

D.陆机的《赴洛道中作》