关于耳源性并发症的病因,错误的是
A.脓液引流不畅
B.胆脂瘤型中耳炎引起者最多见
C.病人抵抗力下降
D.致病菌毒力强
E.单纯型中耳炎不会引起耳源性并发症
参考答案:E
Which of the following statements is most accurate with respect to the measures of the money supply()
A. When a firm writes a check to an individual, the M1 measure is increased.
B. When an individual pays for a transaction at a business with a credit card, the M2 measure is increased.
C. M2 includes M1 plus time deposits, savings deposits, and money market mutual fund balances.
“三宫六院”中的“三宫”指的是故宫中的“交泰殿”、“坤宁宫”和哪座皇帝居住的宫殿?