急性泪腺炎的主要致病菌是（）
A.肺炎双球菌
B.β-溶血性链球菌
C.流感嗜血杆菌
D.金黄色葡萄球菌
E.沙眼衣原体
参考答案：D
—Mum, I'm sorry I ______ my English test again, though I tried my best.
—Oh, believe in yourself and you'll make progress at last. [ ]
A. passed
B. failed
C. had
D. took
道岔的轨型应与铁路的轨型（）。如不一致，道岔的轨型应比线路的轨型（）。
