It can be inferred from the passage that ______.
A. many restrictions in banking operation have been cancelled
B. the ruling of removing the restriction can make the banks plan their future freely
C. the ruling of removing the restriction can't be applicable to all banks
D. the old restrictions will be helpful to set up a powerful domestic base
与血栓形成关系密切的疾病是
A. 感冒
B. 冠状动脉粥样硬化
C. 风湿性心包炎
D. 大叶性肺炎
E. 急性普通型肝炎
Both syntax and semantics are the branches of linguistics, the former studies the rules governing the combination of words into sentences, the latter studies ______.
A. the form of words
B. the meaning of language
C. the sound patterns of language
D. the change of language
设α1，α2，α3，α4是四维非零列向量组，A=(α1，α2，α3，α4)，A*为A的伴随矩阵．已知方程组Ax=0的通解为X=k(0，1，1，0)T，则方程组A*x=0的基础解系为______．
A. α1，α2，α3
B. α2，α3，α4
C. α1，α3，α4
D. α1+α2，α2+α3，α1+α3
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