--Why are you so depressed, Lily?

--- I lost the contest narrowly, or I _________ the award of $10,000.

A．had gained

B．would have gained

C．would gain

D．must have gained

某女孩，7岁。溺水后被人解救出水，呼吸困难，进行胸外心脏按压。正确按压部位是

A．胸骨上1/3处
B．胸骨下1/3处
C．胸骨中、下1/3交界处
D．胸骨中、上1/3交界处
E．心前区