胃十二指肠急性穿孔施行非手术疗法最关键的治疗措施为（）
A.禁食
B.胃肠减压
C.补液，输血
D.针灸，中药
E.选用抗生素
参考答案：B
Imagine how excited we were that our daughter had been employed by the well-known company.
A．learning
B．to learn
C．having learned
D．to be learning
量是现象、物体或物质可（）区别和（）确定的一种属性。
A、定性；定量
B、定量；定性
C、量化；定性
D、具体；实际
