首要的治疗措施为
A.腹部B超
B.胸部X线
C.腹部CT
D.立即输平衡盐和全血
E.腹部穿刺
参考答案:D
已知A={x|-2≤x≤5},B={x|m+1≤x≤2m-1},B≠⌀,且B⊆A,则m的取值范围是___________.
( )As the process of communication is essentially a process of conveying meaning in a certain context,pragmatics can be regarded as a kind of meaning study.