由高温熔融的玄武岩经高速离心或喷吹制成的棉丝状无机纤维的材料是()
A.石棉
B.岩棉
C.矿棉
D.膨胀珍珠岩
参考答案:B
Strict measures have to be ______ to protect______ children from family abuses.
A.adapted; adopted
B.adopted; adopted
C.adjusted; adjusted
D.attached; adopted
首届青年奥林匹克运动会吉祥物是()。