繁殖花卉有哪些常用方法?
参考答案:
1、有性繁殖;
2、无性繁殖;a、分生繁殖;b、扦插繁殖;c、嫁接繁殖;d、压条繁殖;
3、孢子繁殖;
4、植物组织培养。
小题1:I met five (德国人) in the street last week.
小题2:I lost my history book on (星期一).
小题3:After a week, the poor boy (痊愈) from the bad cold at last.
小题4:The snow is very ___________(疏松的)and there is a lot of air in it.
小题5:We can _______(交流)with people in most parts of the world by telephone.
小题6:I feel a little dull in the room ,so I want to go ______ (户外) to breath some fresh air.
小题7:Air pollution is one of the problems that we can’t afford to _______(忽视).
小题8:He has a very large __________(词汇量).
小题9:We must pay attention to what young people are ______ (实际上) doing.
小题10:Many support the former idea, but I am for the _________(后者).
外阴鳞状上皮增生的主要临床表现为:
A.分泌物增多B.不规则出血C.外阴瘙痒D.外阴肿物E.外阴疼痛