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更多“用于RNA检测的Northern印迹杂交，能对组织细胞中的R…”相关的问题
第4题
以下说法正确的是：（） 。
A.2019-nCOV是RNA病毒
B.2019-nCOV检测样本可反复冻融
C.2019-nCOV检测不可混样检测
D.2019-nCOV所有检测人群样本均可混样检测
第5题
基因工程技术可使大肠杆菌合成人的蛋白质。下列叙述不正确的是（)
A.经常用相同的限制性内切酶处理目的基因和质粒
B.DNA连接酶和RNA聚合酶是构建重组质粒必需的工具酶
C.可用含抗生素的培养基检测大肠杆菌中是否导入了重组质粒
D.导入大肠杆菌的目的基因不一定能成功表达
第6题
On the island of Great Britain,there are ________.
A、four political divisions-England,Scotland,Wales and Northern Ireland
B、four political divisions-England,Scotland,Wales and Ireland
C、three political divisions-England,Scotland,and Wales
D、three political divisions-England,Scotland,and Northern Ireland
第7题
Although he has lived there for years he has not yet ________ to the hot climate since he is from the northern part of the country.
A.adopted
B.acquired
C.adapted
D.admitted
