有关理想质粒载体的特点,正确的是() ["为线性单链DNA","含有多种限制酶的单一切点","含有同一限制酶的多个切点","其复制受宿主控制","不含耐药基因"]
治疗血淋、尿血属实热证的常用方剂为()。 ["十灰散","四生丸","小蓟饮子","槐花散","咳血方"]
限制性内切酶是一种() ["核酸特异的内切酶","DNA特异的内切酶","DNA序列特异的内切酶","RNA特异的内切酶","RNA序列特异的内切酶"]
PCR引物退火温度一般为() ["96℃","85℃","72℃","62℃","55℃"]
血府逐瘀汤的组成除桃红四物汤之外,还有()。 ["乌药、香附、枳壳、延胡索","香附、牛膝、没药、五灵脂","葱白、麝香、大枣、黄酒","柴胡、桔梗、枳壳、牛膝","官桂、干姜、蒲黄、五灵脂"]
简述洛克的教育思想。