筛选肠杆菌科的细菌,首选培养基是()
A.普通肉汤
B.鲜血琼脂
C.麦康凯培养基
D.疱肉培养基
E.普通琼脂培养基
参考答案:C
下列各组词语中,有两个错别字的一组分别是
A.抱歉伎俩恢弘摧眠
B.提炼名子祛暑苍穹
C.踊现妒忌缭草披露
D.程控翔实誊写风采
The problem, according to the experts, is _______ we should do with the salty land.
A.that
B.how
C.which
D.what