________________ is a dimensionless number used to distinguish the laminar flow and the turbulent flow.
A. Reynolds number
B. Ekman number
C. Aspect ratio
D. Rossby number
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is/are the correct statement(s) for the warm mesoscale eddies.
A. warm eddies rotate cyclonically
B. the surface bulges up in the core
C. the isopycnals dip down in the core
D. warm eddies have a low-pressure center
E. warm eddies are more often associated with upwelling
若定义pf为指向float类型变量f的指针,下列语句中( )是正确的。
A. float f, *pf = f;
B. float f, *pf = &f;
C. float *pf , f;
D. float f, *pf =0.0;
如果有定义:int m, n = 5, *p = &m; 与m = n 等价的语句是 () 。
A. m = *p;
B. *p = *&n;
C. m = &n;
D. m = **p;
对于下列程序,正确的是() 。
A. 5
B. 6
C. 10
D. 11