下列哪些检查获阳性结果可以诊断流脑()
A.皮肤瘀点培养
B.血培养
C.脑脊液培养
D.咽拭子培养
E.瘀点或脑脊液涂片革兰染色
参考答案:A, B, C, E
郑西高铁隧道口转换的接触网支柱高度为()
A、9米
B、10米
C、11米
D、12米
The newcomer went to the library the other day and scarched for he could find about Mark
Twain. [ ]
A. wherever
B. however
C. whatever
D. whichever