百日咳并发肺炎多见于
A．潜伏期
B．痉咳前期
C．卡他期
D．痉咳期
E．恢复期
参考答案：D
Last Sunday, my cousin took me to the zoo. In the zoo we saw ______ elephant. ______ elephant was from
Africa.[ ]
A. the, An
B. an, An
C. an, The
芍药补气汤功效与作用
