与相应抗原结合后，能与Clq结合活化补体的Ig是
A. IgG、IgM
B. IgA、IgM
C. IgM、IgD
D. IgA、IgE
E. IgG、IgA
下述张力性气胸患者的临床表现中，哪项最具有诊断意义
A. 突发性呼吸困难
B. 突发性胸痛
C. 气管移向健侧
D. 患侧叩诊呈鼓音
E. 患侧呼吸音减低
The concluding paragraph of this text infers______.
A. there is no definitive line between those animals with intelligence and those without
B. animals are being given opportunities to display their intelligence
C. research showing higher animal intelligence may fuel debate on ethics and cruelty
D. animals are capable of untrained thought well beyond mere instinct
解决大城市环境问题的根本措施是
A. 兴建高层建筑，扩大城市占地面积
B. 分散大城市职能，建设卫星城市
C. 治理工业“三废”，建立卫生防护带
D. 健全道路体系，解决交通拥挤问题
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