引起单纯疱疹的病原微生物是()
A.人类 * * 瘤病毒
B.麻疹病毒
C.单纯疱疹病毒
D.水痘-带状疱疹病毒
E.以上都是
参考答案:C
Whenever I met him, _____ was fairly often, I like his sweet and hopeful smile.
A.what
B.that
C.which
D.when
群母今音有[k‘/k/tɕ‘/tɕ]四读,是按什么条件分化的?试举例说明。