单项选择题 根据下列材料回答下列各 题。 A.半边莲 B.鱼腥草 C.马齿苋 D.败酱草 E.黄连 以上药物中,治肺痈最宜选用的药物是
未知题型 教学目标表述必备的要素有( )。
未知题型 Speaker A: Excuse me, Mr. Brown, but can I speak to you for a moment? Speaker B: ______A.Sorry, what would you like to speak to me about?B.Well, I'm afraid we have to find some other time. I'm fully occupied now.C.Yes, can you wait until the meeting is over?D.It's a pleasure. Will you sit down?