5.上午9时30分,时钟的时针和分针所成的角为( )
0 284355 284363 284369 284373 284379 284381 284385 284391 284393 284399 284405 284409 284411 284415 284421 284423 284429 284433 284435 284439 284441 284445 284447 284449 284450 284451 284453 284454 284455 284457 284459 284463 284465 284469 284471 284475 284481 284483 284489 284493 284495 284499 284505 284511 284513 284519 284523 284525 284531 284535 284541 284549 366461
| A. | 90° | B. | 100° | C. | 110° | D. | 105° |