集装装备的最大优点在于（）。

A.集少量货为大量货

B.单元化

C.标准化

D.减少装卸次数

Pericardiocentesis is performed on a client with cardiac tamponade. This procedure would be deemed effective if

A．aspirated blood clots rapidly.

B．blood pressure decreases.

C．blood pressure increases.

D．heart sounds become muffled.