酒精作为消毒溶液其浓度为()时杀菌力最强。
B
暂无解析
添加辅食不正确的是()
婴儿停用洋地黄药物的指征是()
It‘s_____mypowertomakefinaldecisiononthematter.
重写句子:Alanpassedthetest.Alanhadstudiedhard.Alanhadunderstoodthematerial.(complexsentence)
Howmanypartsisanarticleusuallycomposedof?Whatarethey?