“I was touched by the children here who called me ‘Grandpa Wen’ because that’s _______the Chinese children call me at home,” said former premier Wen Jiabao in India．

A．how

B．what

C．why

D．when

机械性肠梗阻的典型表现是

A．板状腹

B．阵发性腹痛

C．呕吐

D．肠鸣音减弱

E．X线检查阶梯样液平面