16.顺次连结菱形四边中点所得的四边形一定是( )
0 285465 285473 285479 285483 285489 285491 285495 285501 285503 285509 285515 285519 285521 285525 285531 285533 285539 285543 285545 285549 285551 285555 285557 285559 285560 285561 285563 285564 285565 285567 285569 285573 285575 285579 285581 285585 285591 285593 285599 285603 285605 285609 285615 285621 285623 285629 285633 285635 285641 285645 285651 285659 366461
| A. | 正方形 | B. | 矩形 | C. | 菱形 | D. | 等腰梯形 |