尖锐湿疣的病原是
A.淋球菌
B.衣原体
C.支原体
D.人类 * * 瘤病毒
E.疱疹病毒
参考答案:D
解析:尖锐湿疣的病原体是人类 * * 瘤病毒(HPV)。
Is this the reason _____ at the meeting for his carelessness in his work?
A.he explained
B.what he explained
C.how he explained
D.why he explained
开关型整流电源稳压精度为()。
A.<±1%
B.<±3%
C.<±5%
D.<±10%