花生沼液浸种时间为（）小时为宜，不宜过长。
A.1~2
B.4~6
C.12~16
D.8~12
参考答案：B
根据下面家谱图，选择正确答案。
1. This is ___________ family tree.
A. Peter's
B. Linda's
2. John is Peter's ___________.
A. grandfather
B. grandmother
3. David is Peter's ___________.
A. aunt
B. uncle
4. Lily is Peter's ___________.
A. sister
B. brother
5. There are ___________ people in this family tree.
A. nine
B. eight
患儿男性，出生4天，生后50小时才排少量胎便，呕吐粪便状液体。查体：腹胀，尚软，无固定压痛。肛查拔出指套后有暴发性排气排便。
为明确诊断，首选的辅助检查是
A．肛门直肠测压 B．钡灌肠检查C．肌电图检查 D．B超检查E．上消化道造影检查
