12岁以上小儿化脓性脑膜炎常见的致病菌是（）
A.大肠杆菌
B.肺炎双球菌
C.副大肠杆菌
D.流感嗜血杆菌
E.金黄色葡萄球菌
参考答案：B
"The moment ________ soon," he thought to himself, waiting nervously. [ ]
A. came
B. has come
C. was coming
D. is coming
计重收费的重要意义是什么？
