A multigravid client in active labor is about to deliver. The nurse has no help immediately available. What should the nurse do first

A. Prepare a clean area on which to deliver the neonate.
B. Lower the head of the bed to a flat position.
C. Have the client push with a contraction.
D. Ask the client to take a deep breath and hold it.

2010年9月16日，在北京开幕的首届两岸汉字艺术节，旨在通过两岸共同搭建汉字艺术交流平台，繁荣两岸汉字文化，传承和弘扬中华文化，增进两岸同胞情意。这说明 　[ ]

 ①传统习俗是两岸人民的精神纽带 ②两岸人民对中国传统文化具有强烈的认同感 ③两岸交流使两岸文化逐渐趋同 ④海峡两岸有着共同的文化根基

A．①②

B．③④

C．②④

D．①④