红霉素最主要的临床用途是()
A.耐青霉素G的金葡菌感染
B.脑膜炎双球菌引起的流脑
C.淋球菌引起的淋病
D.梅毒螺旋体引起的梅毒
E.布氏杆菌病
参考答案:A
完成句子
1. I don't know what he's doing.___(我也不关心).
2. He___(不可能去)to Beijing last night.I saw him just now.
3.____(毫无疑问) that he will win the match.
4. She insisted that she___(不需要帮助).
5. Though the experiment wasn't very successful, we ___(高度评价)his work in the experiment.
在飞行时间内,飞行记录器和驾驶舱话音记录器应()。
A.同时打开
B.交换使用
C.间断使用